# Opinion polling for the 2008 Spanish general election

In the run up to the 2008 Spanish general election, various organisations carried out opinion polling to gauge voting intention in Spain during the term of the 8th Cortes Generales. Results of these polls are displayed in this article. The date range for these opinion polls are from the previous general election, held on 14 March 2004, to the day the next election was held, on 9 March 2008.
Voting intention estimates refer mainly to a hypothetical Congress of Deputies election. Polls are listed in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" columns on the right shows the percentage-point difference between the parties with the highest percentages in a poll.

## Electoral polling
### Nationwide polling
#### Voting intention estimates

The table below lists nationwide voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font; 176 seats were required for an absolute majority in the Congress of Deputies.

##### Color key

Poll conducted after legal ban on opinion polls  Exit poll
| Polling firm/Commissioner | Fieldwork date | Sample size | Turnout | | | | | | PNV | | BNG | | Lead |
| 2008 general election | 9 Mar 2008 | — | 73.8 | 43.9 169 | 39.9 154 | 3.8 2 | 3.0 10 | 1.2 3 | 1.2 6 | 0.7 2 | 0.8 2 | 1.2 1 | 4.0 |
| Ipsos/RTVE–FORTA | 9 Mar 2008 | 210,000 | ? | 45.0 172/176 | 38.6 148/152 | 3.4 2/3 | 3.1 9/11 | 1.2 3/4 | 1.4 6/7 | 0.6 2 | 0.8 1/2 | 1.1 1 | 6.4 |
| TNS Demoscopia/Antena 3 | 9 Mar 2008 | 40,000 | ? | 43.3 163/166 | 38.0 149/152 | 5.2 4/5 | 3.1 10 | 2.3 6/7 | 1.6 7 | 0.7 1/2 | 0.7 1/2 | 1.0 1/2 | 5.3 |
| Opina/Cadena SER | 9 Mar 2008 | ? | ? | 44.5 168/173 | 37.5 145/149 | 5.0 4 | 2.5 9/10 | 2.0 6 | 1.1 6/7 | 0.4 2 | 0.8 1/2 | 0.1 0 | 7.0 |
| Demométrica/Telecinco | 9 Mar 2008 | ? | ? | 44.9 172/178 | 36.9 142/147 | 5.2 3/5 | 2.7 9/11 | 1.5 4/5 | 1.4 6/7 | – | – | ? 0 | 8.0 |
| GESOP/El Periòdic | 7–8 Mar 2008 | 1,000 | 72 | 43.4 166/170 | 38.1 151/155 | ? 4 | ? 10/11 | ? 4/5 | ? 6 | – | – | – | 5.3 |
| GESOP/El Periòdic | 5–7 Mar 2008 | 1,000 | 71 | 43.0 162/166 | 39.0 154/158 | ? 3/4 | ? 9/10 | ? 5 | ? 6 | – | – | – | 4.0 |
| GESOP/El Periòdic | 4–6 Mar 2008 | 1,200 | 70 | 42.6 161/165 | 38.6 153/157 | ? 4 | ? 8/9 | ? 5 | ? 6 | – | – | – | 4.0 |
| Sigma Dos/The Times | 5 Mar 2008 | 1,000 | 74–76 | 43.1 | 39.3 | 4.9 | 2.9 | 1.6 | 1.5 | – | – | – | 3.8 |
| GESOP/El Periòdic | 3–5 Mar 2008 | 1,000 | 68 | 42.4 159/163 | 39.0 154/158 | ? 4/5 | ? 8/9 | ? 5 | ? 6 | – | – | – | 3.4 |
| GESOP/El Periòdic | 3–4 Mar 2008 | 600 | 68 | 41.5 156/160 | 39.0 156/160 | ? 4/6 | ? 8/9 | ? 5/6 | ? 6/7 | – | – | – | 2.5 |
| Demo Ibérica/COPE | 3 Mar 2008 | ? | 70.9 | 42.1 157/160 | 39.8 154/158 | ? 5 | ? 10/11 | ? 6 | ? 7 | ? 2 | ? 2 | ? 0/1 | 2.3 |
| Opina/Cadena SER | 2 Mar 2008 | ? | 74 | 43.5 | 38.0 | 5.0 | 2.8 | 1.6 | 1.2 | – | – | – | 5.5 |
| Demométrica/Telecinco | 29 Feb–2 Mar 2008 | 3,000 | ? | 44.1 169/176 | 38.0 146/153 | 5.2 4/5 | ? 9/10 | ? 4/5 | – | – | – | ? 1 | 6.1 |
| Ipsos/Faro de Vigo | 29 Feb–2 Mar 2008 | ? | 72–74 | 43.4 162/168 | 38.5 148/154 | 5.3 5/8 | 3.0 10/11 | 1.9 5/6 | 1.6 7 | 0.6 2 | 0.8 1/2 | – | 4.9 |
| Opina/Cadena SER | 1 Mar 2008 | 3,000 | 72 | 44.0 164/170 | 38.0 152/154 | 5.0 5 | 2.7 9/10 | 1.5 5 | 1.2 6/7 | – | – | – | 6.0 |
| Demométrica/Telecinco | 28 Feb–1 Mar 2008 | 3,000 | ? | 44.3 | 38.0 | – | – | – | – | – | – | – | 6.3 |
| Sigma Dos/El Mundo | 20 Feb–1 Mar 2008 | 11,000 | 76–78 | 43.4 157/171 | 39.3 148/161 | 4.4 4 | 3.2 9/11 | 1.9 5/6 | 1.5 7 | 0.7 2 | 0.6 0/2 | 0.8 0/1 | 4.1 |
| Obradoiro de Socioloxía/Público | 18 Feb–1 Mar 2008 | 7,200 | ? | 43.9 165/171 | 39.5 153/158 | 4.8 4 | 2.7 8/9 | ? 4 | ? 7 | ? 1 | ? 0/1 | – | 4.4 |
| Opina/Cadena SER | 29 Feb 2008 | ? | ? | 44.0 | 38.5 | 5.0 | 2.7 | 1.5 | 1.2 | – | – | – | 5.5 |
| Intereconomía | 29 Feb 2008 | ? | 72 | 37.6 | 40.5 | 5.5 | 3.4 | 2.5 | 1.7 | – | – | – | 2.9 |
| Demométrica/Telecinco | 27–29 Feb 2008 | 3,000 | ? | 44.6 | 38.2 | – | – | – | – | – | – | – | 6.4 |
| Noxa/La Vanguardia | 26–29 Feb 2008 | 1,200 | ? | 43.5 162/167 | 39.5 152/156 | 4.4 4/5 | 2.5 8/9 | 1.8 6 | 1.3 6/7 | – | – | – | 4.0 |
| Infortécnica | 1–29 Feb 2008 | 1,945 | ? | ? 157/163 | ? 149/155 | ? 5/9 | ? 9/11 | ? 6/8 | – | – | – | – | ? |
| Opina/Cadena SER | 28 Feb 2008 | ? | 72 | 44.5 | 39.5 | 4.7 | 2.5 | 1.5 | 1.2 | – | – | – | 5.0 |
| Demométrica/Telecinco | 26–28 Feb 2008 | 3,000 | ? | 44.5 | 38.4 | 5.1 | – | – | – | – | – | – | 6.1 |
| Obradoiro de Socioloxía/Público | 26–28 Feb 2008 | 1,810 | ? | 45.0 | 38.8 | 4.5 | 3.1 | 1.5 | 1.5 | – | – | – | 6.2 |
| DYM/ABC | 18–28 Feb 2008 | 1,075 | ? | 42.0 | 40.0 | 4.1 | – | – | – | – | – | – | 2.0 |
| Opina/Cadena SER | 27 Feb 2008 | 9,000 | ? | 44.0 165/169 | 39.0 153/157 | 4.0 3/4 | 2.3 8 | 1.5 4/5 | 1.5 7 | – | – | – | 5.0 |
| TNS Demoscopia/Antena 3 | 26–27 Feb 2008 | ? | 75.5 | 42.3 162/164 | 38.5 154/156 | ? 4/5 | ? 9 | ? 6 | ? 6/7 | – | – | – | 3.8 |
| Demométrica/Telecinco | 25–27 Feb 2008 | 3,000 | 76.3 | 44.1 | 38.8 | 5.2 | – | – | – | – | – | – | 5.3 |
| Obradoiro de Socioloxía/Público | 25–27 Feb 2008 | ? | ? | 45.3 | 38.9 | 4.7 | 3.1 | 1.5 | 1.5 | – | – | – | 6.4 |
| Sondaxe/La Voz de Galicia | 21–27 Feb 2008 | 1,300 | 74.4 | 43.5 | 40.0 | 4.6 | 2.7 | 1.7 | 1.4 | – | 1.1 | 1.3 | 3.5 |
| Metroscopia/El País | 8–27 Feb 2008 | 8,750 | 74–75 | 42.9 165/169 | 38.8 148/154 | 4.8 4 | 2.6 9 | 1.9 5/6 | 1.5 7 | 0.6 2 | – | 1.1 0/1 | 4.1 |
| Demo Ibérica/COPE | 26 Feb 2008 | ? | 70.9 | 41.7 157/160 | 39.6 153/156 | ? 5/6 | ? 10 | ? 6 | ? 7 | ? 2 | ? 2 | ? 0/1 | 2.1 |
| Opina/Cadena SER | 26 Feb 2008 | ? | ? | 44.0 | 39.0 | 4.0 | 2.3 | 1.5 | 1.5 | – | – | – | 5.0 |
| GESOP/El Periódico | 26 Feb 2008 | 600 | 68 | 42.5 165/170 | 37.0 149/154 | ? 4/5 | ? 8/9 | ? 5/6 | ? 6 | – | – | – | 5.5 |
| Demométrica/Telecinco | 19–26 Feb 2008 | 8,000 | ? | 44.2 170/177 | 38.6 148/152 | 5.3 5/7 | ? 10 | ? 3/4 | ? 6 | – | – | – | 5.6 |
| Obradoiro de Socioloxía/Público | 23–26 Feb 2008 | ? | ? | 45.3 | 38.7 | 4.5 | 3.1 | 1.4 | 1.4 | – | – | – | 6.6 |
| Opina/Cadena SER | 25 Feb 2008 | ? | ? | 44.0 | 39.0 | 4.0 | 2.3 | 1.5 | 1.5 | – | – | – | 5.0 |
| Demométrica/Telecinco | 23–25 Feb 2008 | ? | ? | 43.2 | 38.5 | – | – | – | – | – | – | – | 4.7 |
| Obradoiro de Socioloxía/Público | 22–25 Feb 2008 | 1,796 | ? | 45.3 | 38.5 | 4.8 | 3.0 | 1.3 | 1.4 | – | – | – | 6.8 |
| Opina/Cadena SER | 24 Feb 2008 | ? | ? | 44.0 163/167 | 40.0 154/156 | 4.5 4 | 2.6 9 | 1.7 5 | 1.4 7 | – | – | – | 4.0 |
| Demométrica/Telecinco | 22–24 Feb 2008 | ? | ? | 42.9 | 38.7 | – | – | – | – | – | – | – | 4.2 |
| Ipsos/Expansión | 22–24 Feb 2008 | ? | 72–74 | 41.7 | 38.2 | – | 2.8 | 2.2 | 1.4 | – | – | – | 3.5 |
| Opina/Cadena SER | 23 Feb 2008 | ? | ? | 44.5 | 41.5 | 4.0 | 2.8 | 1.7 | 1.2 | – | – | – | 3.0 |
| Demométrica/Telecinco | 21–23 Feb 2008 | ? | ? | 43.0 | 37.9 | – | – | – | – | – | – | – | 5.1 |
| Obradoiro de Socioloxía/Público | 21–23 Feb 2008 | ? | ? | 44.7 | 39.3 | 4.2 | 3.1 | 1.3 | 1.4 | – | – | – | 5.4 |
| Demo Ibérica/COPE | 22 Feb 2008 | ? | 70.7 | 41.5 157/160 | 39.6 153/155 | ? 5/6 | 3.4 10/11 | ? 6 | ? 7 | ? 2 | ? 2 | 0.7 0/1 | 1.9 |
| Opina/Cadena SER | 22 Feb 2008 | ? | ? | 42.0 | 40.0 | 4.0 | 2.6 | 1.7 | 1.3 | – | – | – | 2.0 |
| Metroscopia/El País | 22 Feb 2008 | 600 | 73–74 | 42.3 | 38.6 | 4.5 | – | – | – | – | – | – | 3.7 |
| Demométrica/Telecinco | 20–22 Feb 2008 | ? | ? | 43.1 | 37.8 | – | – | – | – | – | – | – | 5.3 |
| Obradoiro de Socioloxía/Público | 20–22 Feb 2008 | 1,812 | ? | 44.0 | 40.0 | 4.5 | 3.0 | 1.4 | 1.3 | – | – | – | 4.0 |
| Invymark/laSexta | 18–22 Feb 2008 | ? | ? | 42.7 | 38.0 | – | – | – | – | – | – | – | 4.7 |
| Opina/Cadena SER | 21 Feb 2008 | ? | ? | 41.5 155/164 | 40.0 158/161 | 4.5 4/5 | 2.6 7/9 | 1.7 4/5 | 1.3 7/8 | – | – | – | 1.5 |
| Demométrica/Telecinco | 19–21 Feb 2008 | ? | ? | 43.3 | 37.5 | – | – | – | – | – | – | – | 5.8 |
| Obradoiro de Socioloxía/Público | 19–21 Feb 2008 | ? | ? | 43.1 | 40.9 | 4.3 | 2.8 | 1.5 | 1.4 | – | – | – | 2.2 |
| DYM/ABC | 11–21 Feb 2008 | 1,074 | ? | 42.0 | 39.2 | 3.9 | – | – | – | – | – | – | 2.8 |
| TNS Demoscopia/Antena 3 | 18–20 Feb 2008 | ? | 73.6 | 42.0 161/164 | 39.7 154/157 | 5.4 4/5 | 2.7 8/9 | 2.2 7 | 1.5 7 | ? 2/3 | ? 1/2 | – | 2.3 |
| Obradoiro de Socioloxía/Público | 18–20 Feb 2008 | 1,812 | ? | 42.8 | 40.4 | 4.6 | 2.6 | 1.3 | 1.4 | – | – | – | 2.4 |
| Append/Vocento | 11–18 Feb 2008 | 4,989 | 74.4 | 41.4 | 38.8 | 4.8 | 3.0 | 2.0 | 1.5 | 0.7 | 0.6 | 0.5 | 2.6 |
| TNS Demoscopia/Antena 3 | 11–18 Feb 2008 | ? | 72.4 | 41.8 162/164 | 40.2 155/157 | 5.4 4 | 2.9 8/9 | 1.9 6/7 | 1.6 7/8 | – | – | – | 1.6 |
| Ipsos/Expansión | 15–17 Feb 2008 | ? | 72–74 | 42.3 | 37.3 | 4.5 | – | – | – | – | – | 0.5 | 5.0 |
| GESOP/El Periódico | 11–17 Feb 2008 | 1,500 | 65–70 | 40.5 159/164 | 37.0 153/157 | 4.9 4/6 | 2.6 9/10 | 1.7 5/6 | 1.4 6/7 | – | – | – | 3.5 |
| ASEP | 11–17 Feb 2008 | 1,201 | 75.5 | 40.7 | 38.5 | – | – | – | – | – | – | – | 2.2 |
| Metroscopia/El País | 15 Feb 2008 | 600 | 71–72 | 41.9 | 38.9 | 5.0 | – | – | – | – | – | – | 3.0 |
| Invymark/laSexta | 11–15 Feb 2008 | ? | ? | 42.8 | 38.4 | – | – | – | – | – | – | – | 4.4 |
| Noxa/La Vanguardia | 8–14 Feb 2008 | 1,800 | ? | 43.1 165 | 39.1 152 | 5.0 5 | 3.0 10 | 1.5 5 | 1.4 6 | – | – | – | 4.0 |
| DYM/ABC | 4–14 Feb 2008 | 1,057 | ? | 42.2 | 39.2 | 3.9 | – | – | – | – | – | – | 3.0 |
| Obradoiro de Socioloxía/Público | 7 Jan–12 Feb 2008 | 12,000 | ? | 42.6 158/169 | 40.1 154/163 | 4.9 4 | 2.6 8/10 | 1.3 4 | 1.3 6/7 | ? 1/2 | ? 2 | – | 2.5 |
| Ipsos/Expansión | 8–10 Feb 2008 | ? | 69–70 | 41.1 | 39.8 | 5.1 | – | – | – | – | – | – | 1.3 |
| TNS Demoscopia/Antena 3 | 4–10 Feb 2008 | ? | 73.4 | 42.7 165/168 | 39.1 151/153 | 4.9 4/5 | 2.7 8 | ? 7 | 1.7 7 | ? 2 | – | ? 0 | 3.6 |
| Metroscopia/El País | 8 Feb 2008 | 600 | 70–71 | 41.7 | 38.8 | 5.3 | – | – | – | – | – | – | 2.9 |
| Obradoiro de Socioloxía/Público | 28 Jan–8 Feb 2008 | 4,008 | ? | 44.0 | 38.5 | 4.9 | 2.8 | 1.5 | 1.6 | – | – | – | 5.5 |
| Sigma Dos/El Mundo | 4–7 Feb 2008 | 1,000 | ? | 41.8 | 39.2 | 5.2 | 3.2 | 2.1 | 1.6 | – | – | – | 2.6 |
| DYM/ABC | 28 Jan–7 Feb 2008 | 1,031 | ? | 42.4 | 39.2 | 4.1 | – | – | – | – | – | – | 3.2 |
| Simple Lógica | 23 Jan–4 Feb 2008 | 2,031 | 72.7 | 40.6 | 38.4 | 5.1 | 2.7 | – | 1.4 | – | – | – | 2.2 |
| CIS | 21 Jan–4 Feb 2008 | 18,221 | ? | 40.2 158/163 | 38.7 153/157 | 5.8 5/6 | 3.0 10 | 2.1 6 | 1.7 7 | 0.6 1/2 | 0.9 2 | 0.6 0/1 | 1.5 |
| DYM/ABC | 21–31 Jan 2008 | 1,015 | ? | 42.4 | 38.6 | 4.2 | – | – | – | – | – | – | 3.8 |
| Obradoiro de Socioloxía/Público | 21–31 Jan 2008 | 4,009 | 72 | 44.6 | 38.2 | 5.0 | 3.0 | 1.3 | 1.6 | – | – | – | 6.4 |
| TNS Demoscopia/Antena 3 | 29–30 Jan 2008 | ? | ? | 42.5 164/166 | 39.3 154/156 | 4.6 3 | 2.8 9 | ? 6 | 1.5 6/7 | ? 2 | ? 2 | – | 3.2 |
| Metroscopia/El País | 26–30 Jan 2008 | 2,000 | 73–74 | 42.0 | 38.6 | 5.1 | – | – | – | – | – | – | 3.4 |
| TNS Demoscopia/Antena 3 | 28 Jan 2008 | ? | 73.0 | 42.3 162/166 | 39.6 151/155 | 4.5 4 | 3.0 9/10 | 1.6 6 | 1.5 7/8 | ? 2/3 | – | ? 1 | 2.7 |
| Celeste-Tel/Terra | 22–28 Jan 2008 | 10,910 | 72.9 | 43.7– 44.1 164/168 | 41.3– 41.7 152/154 | 4.0– 4.2 2/5 | 3.2– 3.3 10 | 1.1– 1.2 3 | 1.2– 1.3 6/7 | 0.8 2/3 | 0.9 2 | 1.4– 1.5 1 | 2.4 |
| Invymark/laSexta | 21–25 Jan 2008 | 1,100 | ? | 43.1 | 38.1 | – | – | – | – | – | – | – | 5.0 |
| Obradoiro de Socioloxía/Público | 14–24 Jan 2008 | 4,007 | ? | 44.5 | 38.7 | 4.6 | 2.8 | 1.5 | 1.6 | – | – | – | 5.8 |
| Opina/Cadena SER | 23 Jan 2008 | 1,000 | ? | 44.0 | 38.0 | 3.5 | 3.0 | 1.9 | 1.6 | – | – | – | 6.0 |
| TNS Demoscopia/Antena 3 | 21 Jan 2008 | ? | 71.5 | 41.6 160/164 | 39.5 149/153 | 5.1 4/5 | 3.1 10/11 | 2.0 6/7 | 1.5 7/8 | 0.8 3 | – | 2.0 1 | 2.1 |
| ASEP | 14–20 Jan 2008 | 1,203 | 75.6 | 40.3 | 38.9 | – | – | – | – | – | – | – | 1.4 |
| Obradoiro de Socioloxía/Público | 7–17 Jan 2008 | 4,000 | ? | 42.8 | 39.2 | 5.0 | 2.6 | 1.7 | 1.6 | – | – | – | 3.6 |
| Noxa/La Vanguardia | 11–16 Jan 2008 | 1,000 | ? | 42.3 162/164 | 39.8 154/156 | 5.1 5 | 2.5 8 | 1.8 6 | 1.5 7 | – | – | – | 2.5 |
| TNS Demoscopia/Antena 3 | 14 Jan 2008 | ? | 72.0 | 41.9 160/164 | 40.1 151/155 | 4.8 4/5 | 3.3 10/11 | 1.8 5/6 | 1.6 7/8 | ? 2/3 | ? 1/2 | ? 0 | 1.8 |
| Ipsos/Expansión | 11–13 Jan 2008 | ? | 68–70 | 41.5 | 39.5 | – | – | – | – | – | – | – | 2.0 |
| Opina/Cadena SER | 9 Jan 2008 | 1,000 | ? | 43.0 | 40.0 | 3.5 | 3.0 | 1.5 | 1.4 | – | – | – | 3.0 |
| Invymark/laSexta | 24–28 Dec 2007 | ? | ? | 43.2 | 38.4 | – | – | – | – | – | – | – | 4.8 |
| Sigma Dos/El Mundo | 14–26 Dec 2007 | 10,400 | ? | 41.9 153/164 | 39.4 151/162 | 5.0 5 | 3.4 10/11 | 2.2 7 | 1.5 7 | ? 3 | ? 1/2 | ? 0 | 2.5 |
| Obradoiro de Socioloxía/Público | 20 Nov–21 Dec 2007 | 9,100 | 72 | 43.0 167 | 38.5 151 | 5.6 6 | 2.7 9 | 1.6 5 | 1.6 7 | ? 2 | ? 2 | 0.9 0 | 4.5 |
| Ipsos/Expansión | 14–16 Dec 2007 | 1,000 | 66–68 | 41.3 | 38.0 | 5.3 | 3.2 | 2.1 | 1.5 | – | – | 1.3 | 3.3 |
| ASEP | 10–16 Dec 2007 | 1,199 | 76.3 | 40.4 | 37.1 | – | – | – | – | – | – | – | 3.3 |
| Invymark/laSexta | 10–14 Dec 2007 | ? | ? | 42.4 | 38.9 | – | – | – | – | – | – | – | 3.5 |
| Noxa/La Vanguardia | 28 Nov–12 Dec 2007 | 2,000 | ? | 42.5 158/162 | 39.7 152/156 | 5.3 5/6 | 2.8 10 | 1.7 5/6 | 1.9 7/9 | – | – | – | 2.8 |
| TNS Demoscopia/Antena 3 | 11 Dec 2007 | ? | 73.2 | 42.0 | 38.2 | 5.5 | 3.2 | 1.9 | 1.4 | – | – | 1.0 | 3.8 |
| Opina/Cadena SER | 4 Dec 2007 | 1,000 | ? | 45.0 | 37.5 | 4.5 | 3.0 | 1.5 | 1.5 | – | – | – | 7.5 |
| Obradoiro de Socioloxía/Público | 2 Dec 2007 | ? | ? | 42.5 | 37.4 | 5.2 | 2.8 | 2.0 | 1.5 | – | – | – | 5.1 |
| Intercampo/GETS | 22 Nov 2007 | ? | High | 40.7 | 38.4 | 5.3 | 3.3 | 2.0 | 1.7 | – | – | – | 2.3 |
| Intercampo/GETS | 22 Nov 2007 | ? | Low | 41.3 | 38.5 | 5.1 | 3.8 | 2.3 | 1.8 | – | – | – | 2.8 |
| Opina/Cadena SER | 21 Nov 2007 | 1,000 | ? | 45.0 | 38.0 | 4.0 | 3.2 | 1.7 | 1.9 | – | – | – | 7.0 |
| ASEP | 12–18 Nov 2007 | 1,203 | 77.6 | 42.8 | 36.4 | – | – | – | – | – | – | – | 6.4 |
| GESOP/El Periódico | 12–17 Nov 2007 | 1,500 | ? | 43.5 165/170 | 37.6 145/150 | 5.0 4/5 | 2.8 9/10 | 1.8 6/7 | 1.4 6/7 | – | – | – | 5.9 |
| TNS Demoscopia/Antena 3 | 13 Nov 2007 | ? | 72.1 | 41.4 | 39.0 | 5.5 | 2.7 | 2.3 | 1.5 | 0.8 | 0.9 | 0.8 | 2.4 |
| Ipsos/Expansión | 9–11 Nov 2007 | ? | 68–70 | 41.4 | 38.3 | 5.2 | 3.0 | 2.1 | 1.6 | – | – | 1.6 | 3.1 |
| Invymark/laSexta | 5–9 Nov 2007 | ? | ? | 42.0 | 38.5 | – | – | – | – | – | – | – | 3.5 |
| Sigma Dos/El Mundo | 7–8 Nov 2007 | 800 | ? | 42.2 | 39.1 | 4.8 | 3.0 | 2.2 | 1.3 | – | – | – | 3.1 |
| Opina/Cadena SER | 6 Nov 2007 | 1,000 | ? | 44.5 | 38.0 | 4.0 | 3.0 | 1.9 | 1.4 | – | – | – | 6.5 |
| Obradoiro de Socioloxía/Público | 4 Nov 2007 | ? | ? | 41.7 | 38.6 | 4.7 | 2.9 | 2.2 | 1.4 | – | – | – | 3.1 |
| Invymark/laSexta | 29 Oct–2 Nov 2007 | 1,100 | ? | 42.6 | 38.0 | – | – | – | – | – | – | – | 4.6 |
| CIS | 22–29 Oct 2007 | 2,493 | ? | 39.7 | 37.4 | 5.5 | 3.1 | 2.1 | 1.5 | – | – | – | 2.3 |
| Opina/Cadena SER | 23 Oct 2007 | 1,000 | ? | 44.0 | 39.0 | 3.3 | 3.2 | 1.9 | 1.4 | – | – | – | 5.0 |
| ASEP | 15–21 Oct 2007 | 1,202 | 76.2 | 40.9 | 38.8 | 6.0 | – | – | – | – | – | – | 2.1 |
| Ipsos/Expansión | 12–15 Oct 2007 | ? | 66–68 | 42.7 | 38.1 | 4.9 | 3.1 | 2.0 | 1.8 | – | – | – | 4.6 |
| TNS Demoscopia/Antena 3 | 10 Oct 2007 | ? | 70.2 | 40.6 | 39.5 | 5.2 | 3.2 | 2.3 | 1.4 | 0.7 | 0.9 | 0.9 | 1.1 |
| Opina/Cadena SER | 9 Oct 2007 | 1,000 | ? | 44.0 | 39.0 | 3.3 | 3.0 | 2.3 | 1.8 | – | – | – | 5.0 |
| DYM/ABC | 1–4 Oct 2007 | 1,000 | ? | 41.2 | 39.3 | 4.5 | – | – | – | – | – | – | 1.9 |
| Noxa/La Vanguardia | 28 Sep–3 Oct 2007 | 1,000 | ? | 42.3 163/164 | 39.6 154/155 | 5.7 5/6 | 2.5 8/9 | 1.6 5/6 | 1.1 5/6 | – | – | – | 2.7 |
| Obradoiro de Socioloxía/Público | 21–28 Sep 2007 | 3,067 | ? | 41.0 | 38.8 | 4.9 | 3.1 | 2.5 | 1.4 | – | – | – | 2.2 |
| Opina/Cadena SER | 26 Sep 2007 | ? | ? | 44.0 | 39.0 | 5.0 | 2.5 | 1.7 | 1.2 | – | – | – | 5.0 |
| ASEP | 17–23 Sep 2007 | 1,213 | 77.3 | 42.6 | 37.1 | 6.0 | – | – | – | – | – | – | 5.5 |
| Invymark/laSexta | 10–14 Sep 2007 | ? | ? | 42.2 | 38.8 | – | – | – | – | – | – | – | 3.4 |
| Opina/Cadena SER | 13 Sep 2007 | ? | ? | 44.0 | 38.0 | 5.0 | 3.5 | 1.8 | 1.2 | – | – | – | 6.0 |
| TNS Demoscopia/Antena 3 | 11 Sep 2007 | ? | 71.6 | 41.8 | 38.0 | – | – | – | – | – | – | – | 3.8 |
| Ipsos/Expansión | 7–10 Sep 2007 | ? | 68–70 | 40.3 | 39.8 | 5.5 | 2.8 | 1.9 | 1.8 | – | – | – | 0.5 |
| Sigma Dos/El Mundo | 28–31 Aug 2007 | 800 | ? | 41.1 | 39.7 | 5.4 | 2.7 | 2.3 | 1.6 | – | – | – | 1.4 |
| Opina/Cadena SER | 29 Aug 2007 | 1,000 | ? | 44.0 | 39.5 | 3.5 | 4.5 | 1.9 | 1.3 | – | – | – | 4.5 |
| CIS | 6–18 Jul 2007 | 2,483 | ? | 40.5 | 37.0 | 6.1 | 2.9 | 1.9 | 1.5 | – | – | – | 3.5 |
| TNS Demoscopia/Antena 3 | 17 Jul 2007 | ? | 69.3 | 41.7 | 39.5 | 5.5 | 3.2 | – | – | – | – | – | 2.2 |
| ASEP | 9–15 Jul 2007 | 1,200 | 75.1 | 43.1 | 36.4 | 5.6 | – | – | – | – | – | – | 6.7 |
| Invymark/laSexta | 9–13 Jul 2007 | ? | ? | 42.8 | 38.2 | – | – | – | – | – | – | – | 4.6 |
| Noxa/La Vanguardia | 6–8 Jul 2007 | 1,000 | ? | 44.1 168/169 | 37.9 148/149 | 5.4 5/6 | 2.8 9/10 | 2.0 6/7 | 1.4 6/7 | – | – | – | 6.2 |
| Ipsos/Expansión | 6–8 Jul 2007 | ? | 70–71 | 43.1 | 39.4 | 5.0 | 2.2 | 1.7 | 1.4 | – | – | – | 3.7 |
| Metroscopia/ABC | 4–5 Jul 2007 | 1,000 | ? | 43.3 | 39.3 | 5.4 | – | – | – | – | – | – | 4.0 |
| Opina/Cadena SER | 4 Jul 2007 | ? | ? | 45.0 | 38.5 | 5.0 | 4.5 | 1.7 | 1.5 | – | – | – | 6.5 |
| TNS Demoscopia/Antena 3 | 19 Jun 2007 | ? | 70.9 | 41.0 | 40.3 | 5.3 | 3.1 | 2.0 | 1.5 | 0.7 | 0.8 | – | 0.7 |
| ASEP | 11–17 Jun 2007 | 1,213 | 74.2 | 41.5 | 38.4 | 4.9 | – | – | – | – | – | – | 3.1 |
| GESOP/El Periódico | 13–15 Jun 2007 | 800 | ? | 42.2 | 39.2 | 5.5 | 3.0 | 1.7 | 1.3 | – | – | – | 3.0 |
| Iberconsulta/La Razón | 11–13 Jun 2007 | 1,000 | 73.3 | 39.7 | 40.6 | 5.3 | – | – | – | – | – | – | 0.9 |
| Opina/Cadena SER | 12 Jun 2007 | 1,000 | ? | 43.0 | 40.0 | 5.0 | 3.0 | 2.0 | 1.5 | – | – | – | 3.0 |
| Ipsos/Expansión | 1–3 Jun 2007 | ? | 69–70 | 40.4 | 39.1 | 5.4 | 2.9 | 2.1 | 1.6 | – | – | – | 1.3 |
| Opina/Cadena SER | 30 May 2007 | 1,000 | ? | 44.0 | 38.0 | 5.0 | 2.5 | 1.5 | 1.5 | – | – | – | 6.0 |
| 2007 local elections | 27 May 2007 | — | 64.0 | 34.9 | 35.6 | 6.6 | 3.3 | 1.6 | 1.4 | 1.0 | 1.4 | – | 0.7 |
| ASEP | 14–20 May 2007 | 1,213 | 79.6 | 41.6 | 36.8 | 5.3 | – | – | – | – | – | – | 4.8 |
| Ipsos/Expansión | 11–13 May 2007 | ? | 70–71 | 40.8 | 37.6 | 5.3 | 3.0 | 2.2 | 1.6 | – | – | – | 3.2 |
| TNS Demoscopia/Antena 3 | 9 May 2007 | ? | 67.5 | 40.6 | 39.8 | – | – | – | – | – | – | – | 0.8 |
| CIS | 23–29 Apr 2007 | 2,455 | ? | 39.6 | 36.6 | 5.6 | 3.0 | 2.4 | 1.6 | – | – | – | 3.0 |
| ASEP | 16–22 Apr 2007 | 1,212 | 75.8 | 41.0 | 36.4 | 6.1 | – | – | – | – | – | – | 4.6 |
| Metroscopia/ABC | 16–18 Apr 2007 | 1,002 | 70 | 42.4 | 40.9 | 4.2 | – | – | – | – | – | – | 1.5 |
| TNS Demoscopia/Antena 3 | 17 Apr 2007 | ? | 67.1 | 39.8 | 39.6 | 5.6 | 3.1 | 2.2 | 1.5 | 0.8 | 0.9 | – | 0.2 |
| Ipsos/Expansión | 13–15 Apr 2007 | ? | 69–70 | 39.9 | 37.2 | 5.4 | 3.2 | 2.1 | 1.7 | – | – | – | 2.7 |
| Opina/Cadena SER | 11 Apr 2007 | 1,000 | ? | 43.0 | 38.0 | 5.5 | 3.5 | 1.8 | 1.5 | – | – | – | 5.0 |
| Sigma Dos/El Mundo | 30 Mar–2 Apr 2007 | 800 | ? | 41.5 | 40.3 | 4.8 | 3.0 | 1.9 | 1.5 | – | – | – | 1.2 |
| Opina/El País | 21–22 Mar 2007 | 1,000 | ? | 42.0 | 38.5 | 5.0 | 3.8 | 2.0 | 1.0 | – | – | – | 3.5 |
| ASEP | 12–18 Mar 2007 | 1,203 | 76.5 | 41.5 | 37.0 | 4.4 | – | – | – | – | – | – | 4.5 |
| Opina/Cadena SER | 15 Mar 2007 | 1,000 | ? | 43.0 | 38.0 | 5.5 | 3.5 | 2.0 | 1.5 | – | – | – | 5.0 |
| GESOP/El Periódico | 11–15 Mar 2007 | 1,500 | ? | 41.9 | 39.7 | 5.8 | 2.9 | 1.9 | 1.2 | – | – | – | 2.2 |
| Iberconsulta/La Razón | 9–14 Mar 2007 | 800 | ? | 38.4 145/147 | 42.2 161/163 | 5.7 7 | 3.4 11 | 2.6 9 | 1.7 7 | 1.0 3 | 0.9 2 | – | 3.8 |
| Ipsos/Expansión | 9–11 Mar 2007 | ? | 68–69 | 38.5 | 38.3 | 5.6 | 3.4 | 1.9 | 1.7 | – | – | – | 0.2 |
| Opina/Cadena SER | 7 Mar 2007 | 1,000 | ? | 43.0 | 40.0 | 5.0 | 3.0 | 2.0 | 1.0 | – | – | – | 3.0 |
| Opina/Cadena SER | 23 Feb 2007 | 1,000 | ? | 44.0 | 38.0 | 5.0 | 3.6 | 1.7 | 1.5 | – | – | – | 6.0 |
| ASEP | 12–18 Feb 2007 | 1,208 | 73.5 | 40.8 | 38.4 | 5.3 | – | – | – | – | – | – | 2.4 |
| Opina/Cadena SER | 7 Feb 2007 | ? | ? | 43.0 | 38.0 | 3.5 | 3.0 | 1.9 | 1.5 | – | – | – | 5.0 |
| Invymark/laSexta | 29 Jan–2 Feb 2007 | ? | ? | 42.2 | 37.8 | – | – | – | – | – | – | – | 4.4 |
| Metroscopia/ABC | 29–31 Jan 2007 | 1,001 | ? | 40.1 | 42.7 | 6.1 | – | – | – | – | – | – | 2.6 |
| CIS | 22–31 Jan 2007 | 2,472 | ? | 38.8 | 37.6 | 6.5 | 3.2 | 2.0 | 1.4 | – | – | – | 1.2 |
| Intereconomía | 25 Jan 2007 | ? | 73.4 | 38.1 | 41.8 | 5.1 | 3.0 | 2.1 | 1.7 | – | – | – | 3.7 |
| ASEP | 15–21 Jan 2007 | 1,201 | 75.0 | 42.3 | 36.3 | 4.5 | – | – | – | – | – | – | 6.0 |
| Noxa/La Vanguardia | 15–18 Jan 2007 | 1,000 | ? | 42.0 161/164 | 34.8 138/142 | 7.1 13 | 3.9 13/14 | 2.0 6 | 1.7 7 | – | – | – | 7.2 |
| Opina/Cadena SER | 17 Jan 2007 | ? | ? | 44.0 | 38.0 | 3.5 | 3.5 | 2.0 | 1.5 | – | – | – | 6.0 |
| Metra Seis/Colpisa | 7–15 Jan 2007 | 2,000 | ? | 38.3 142/152 | 40.7 163/169 | 5.7 6/7 | 3.1 11/12 | 2.0 7 | 1.7 7 | ? 3 | – | – | 2.4 |
| Opina/Cadena SER | 4 Jan 2007 | 1,000 | ? | 42.0 | 40.0 | 4.0 | 3.5 | 2.5 | 1.4 | – | – | – | 2.0 |
| Sigma Dos/El Mundo | 2–4 Jan 2007 | 800 | ? | 40.2 | 40.7 | 5.2 | 3.0 | 2.2 | 1.6 | – | – | – | 0.5 |
| Metroscopia/ABC | 3 Jan 2007 | 605 | 72 | 41.1 | 40.4 | 5.9 | – | – | – | – | – | – | 0.7 |
| Intereconomía | 28 Dec 2006 | ? | 72.6 | 38.7 | 39.1 | 5.7 | 2.9 | 2.3 | 1.9 | – | – | – | 0.4 |
| Sigma Dos/El Mundo | 26–28 Dec 2006 | 800 | ? | 40.7 | 40.5 | 5.0 | 3.0 | 2.3 | 1.5 | – | – | – | 0.2 |
| ASEP | 11–17 Dec 2006 | 1,191 | 75.1 | 40.9 | 36.3 | 5.1 | – | – | – | – | – | – | 4.6 |
| Opina/Cadena SER | 12 Dec 2006 | ? | ? | 44.0 | 38.0 | 5.5 | 3.0 | 1.7 | 1.9 | – | – | – | 6.0 |
| Ipsos/PSOE | 12 Dec 2006 | ? | ? | 42.0 | 36.0 | – | – | – | – | – | – | – | 6.0 |
| Opina/Cadena SER | 30 Nov 2006 | ? | ? | 44.0 | 39.0 | 4.5 | 3.5 | 2.0 | 2.0 | – | – | – | 5.0 |
| ASEP | 20–26 Nov 2006 | 1,206 | 75.7 | 42.2 | 37.0 | 5.4 | – | – | – | – | – | – | 5.2 |
| Opina/Cadena SER | 16 Nov 2006 | 1,000 | ? | 45.0 | 39.0 | 4.5 | 3.0 | 2.0 | 0.9 | – | – | – | 6.0 |
| Opina/Cadena SER | 2 Nov 2006 | 1,000 | ? | 44.0 | 39.0 | 4.5 | 3.3 | 2.0 | 1.9 | – | – | – | 5.0 |
| Intereconomía | 27 Oct 2006 | ? | 70.9 | 39.3 | 40.2 | 5.0 | 2.8 | 2.0 | 1.6 | – | – | – | 0.9 |
| CIS | 18–25 Oct 2006 | 2,481 | ? | 39.3 | 37.9 | 5.1 | 3.1 | 2.8 | 1.7 | – | – | – | 1.4 |
| ASEP | 16–22 Oct 2006 | 1,200 | 73.1 | 40.3 | 38.5 | 4.9 | – | – | – | – | – | – | 1.8 |
| Intercampo/GETS | 19 Sep–22 Oct 2006 | 1,735 | High | 40.4 | 38.9 | 5.2 | 3.0 | 2.4 | 1.5 | – | – | – | 1.5 |
| Intercampo/GETS | 19 Sep–22 Oct 2006 | 1,735 | Low | 40.3 | 39.7 | 4.9 | 2.8 | 2.6 | 1.3 | – | – | – | 0.6 |
| Sigma Dos/El Mundo | 6–9 Oct 2006 | 800 | ? | 42.9 | 39.4 | 4.4 | 2.7 | 2.0 | 1.6 | – | – | – | 3.5 |
| Metroscopia/ABC | 29 Sep–4 Oct 2006 | 1,000 | 73 | 42.7 | 38.3 | 5.6 | – | – | – | – | – | – | 4.4 |
| Opina/Cadena SER | 28 Sep 2006 | ? | ? | 43.0 | 37.0 | 4.5 | 3.0 | 1.3 | 1.3 | – | – | – | 6.0 |
| Intereconomía | 28 Sep 2006 | ? | 71.7 | 39.1 | 38.8 | 5.6 | 3.2 | 2.0 | 1.7 | – | – | – | 0.3 |
| ASEP | 17–24 Sep 2006 | 1,202 | 75.5 | 41.2 | 38.5 | – | – | – | – | – | – | – | 2.7 |
| Opina/Cadena SER | 13 Sep 2006 | ? | ? | 43.0 | 39.0 | 4.0 | 3.0 | 1.3 | 1.0 | – | – | – | 4.0 |
| Opina/Cadena SER | 31 Aug 2006 | ? | ? | 43.0 | 38.0 | 3.5 | 4.0 | 1.5 | 1.0 | – | – | – | 5.0 |
| Intereconomía | 27 Jul 2006 | ? | 72.2 | 38.7 | 39.0 | 5.7 | 3.1 | 2.4 | 1.9 | – | – | – | 0.3 |
| CIS | 10–16 Jul 2006 | 2,482 | ? | 40.6 | 36.9 | 5.0 | 3.2 | 2.1 | 1.4 | – | – | – | 3.7 |
| Opina/El País | 14 Jul 2006 | 800 | ? | 45.0 | 39.0 | 3.5 | 3.5 | 2.5 | 1.8 | – | – | – | 6.0 |
| Noxa/La Vanguardia | 10–13 Jul 2006 | 1,000 | ? | 44.4 169/173 | 36.8 142/145 | 4.8 4/6 | 3.2 10 | 1.8 6 | 1.5 6/7 | – | – | – | 7.6 |
| ASEP | 3–9 Jul 2006 | 1,213 | 75.1 | 42.9 | 37.3 | – | – | – | – | – | – | – | 5.6 |
| GESOP/El Periódico | 30 Jun–4 Jul 2006 | 1,000 | ? | 42.8 | 38.8 | 5.4 | 3.0 | 2.2 | 1.8 | – | – | – | 4.0 |
| Opina/Cadena SER | 21–22 Jun 2006 | 1,000 | ? | 45.0 | 38.0 | 4.0 | 4.0 | 2.5 | 1.5 | – | – | – | 7.0 |
| ASEP | 5–11 Jun 2006 | 1,205 | 78.0 | 41.3 | 35.9 | – | – | – | – | – | – | – | 5.4 |
| Intereconomía | 2–5 Jun 2006 | ? | 72.6 | 40.1 | 39.2 | 5.5 | 2.9 | 2.1 | 1.7 | – | – | – | 0.9 |
| Metroscopia/ABC | 2 Jun 2006 | ? | 73 | 43.8 | 36.7 | 5.0 | – | – | – | – | – | – | 7.1 |
| Opina/El País | 1 Jun 2006 | 800 | ? | 45.0 | 38.0 | 4.5 | 2.5 | 2.0 | 1.0 | – | – | – | 7.0 |
| Opina/Cadena SER | 31 May 2006 | ? | ? | 45.0 | 39.0 | 5.5 | 3.0 | 2.0 | 1.5 | – | – | – | 6.0 |
| Sigma Dos/El Mundo | 24–25 May 2006 | 800 | ? | 41.7 | 40.2 | 4.6 | 2.8 | 2.2 | 1.5 | – | – | – | 1.5 |
| Opina/Cadena SER | 19 May 2006 | ? | ? | 45.0 | 38.0 | 4.5 | 2.0 | 1.0 | 1.5 | – | – | – | 7.0 |
| ASEP | 8–14 May 2006 | 1,201 | 76.8 | 41.5 | 37.9 | – | – | – | – | – | – | – | 3.6 |
| Opina/Cadena SER | 5 May 2006 | 1,000 | ? | 45.0 | 40.0 | 3.5 | 3.0 | 2.0 | 1.8 | – | – | – | 5.0 |
| CIS | 24–30 Apr 2006 | 2,481 | ? | 40.3 | 38.2 | 5.4 | 2.9 | 2.0 | 1.4 | – | – | – | 2.1 |
| GESOP/El Periódico | 19–22 Apr 2006 | 1,002 | ? | 43.3 | 39.5 | 5.4 | 2.8 | 2.3 | 1.5 | – | – | – | 3.8 |
| Opina/Cadena SER | 20 Apr 2006 | 1,000 | ? | 46.0 | 38.0 | 4.0 | 3.5 | 2.0 | 1.0 | – | – | – | 8.0 |
| Iberconsulta/La Razón | 10–11 Apr 2006 | 800 | ? | 43.7 165/166 | 38.2 149/150 | 5.1 5 | 3.2 11 | 2.3 7 | 1.7 6 | 0.9 2 | 1.0 2 | – | 5.5 |
| ASEP | 3–9 Apr 2006 | 1,204 | 75.8 | 43.5 | 38.1 | – | – | – | – | – | – | – | 5.4 |
| Opina/Cadena SER | 30 Mar 2006 | 1,000 | ? | 44.0 | 39.0 | 4.0 | 2.5 | 2.5 | 1.7 | – | – | – | 5.0 |
| Metroscopia/ABC | 28–30 Mar 2006 | 1,003 | 74 | 44.5 | 36.8 | 5.0 | – | – | – | – | – | – | 7.7 |
| Sigma Dos/PP | 23–27 Mar 2006 | 1,000 | ? | 42.3 | 39.6 | 5.2 | 3.0 | – | 1.5 | – | – | – | 2.7 |
| Ipsos/PSOE | 24–26 Mar 2006 | ? | ? | 45.6 | 37.7 | 4.6 | – | – | – | – | – | – | 7.9 |
| Opina/El País | 24 Mar 2006 | 1,000 | ? | 46.0 | 38.0 | 4.5 | 4.0 | 2.0 | 1.5 | – | – | – | 8.0 |
| Opina/Cadena SER | 23 Mar 2006 | ? | ? | 46.0 | 37.0 | 4.0 | 2.5 | 2.3 | 1.5 | – | – | – | 9.0 |
| Opina/Cadena SER | 15–16 Mar 2006 | 1,000 | ? | 43.0 | 39.0 | 4.0 | 3.5 | 2.0 | 1.2 | – | – | – | 4.0 |
| ASEP | 6–12 Mar 2006 | 1,200 | 76.9 | 41.0 | 38.4 | – | – | – | – | – | – | – | 2.6 |
| Sigma Dos/El Mundo | 7–9 Mar 2006 | 1,000 | ? | 40.8 | 40.7 | 5.0 | 2.5 | – | 1.6 | – | – | – | 0.1 |
| Opina/Cadena SER | 2 Mar 2006 | 1,000 | ? | 45.0 | 40.0 | 5.0 | 2.5 | 2.0 | 1.4 | – | – | – | 5.0 |
| Opina/Cadena SER | 16 Feb 2006 | 1,000 | ? | 42.0 | 39.0 | 4.0 | 3.0 | 2.0 | 1.4 | – | – | – | 3.0 |
| ASEP | 6–12 Feb 2006 | 1,209 | 74.9 | 37.8 | 40.2 | – | – | – | – | – | – | – | 2.4 |
| Opina/Cadena SER | 2 Feb 2006 | 1,000 | ? | 41.0 | 40.0 | 4.5 | 4.0 | 1.5 | 1.0 | – | – | – | 1.0 |
| GESOP/El Periódico | 30 Jan–2 Feb 2006 | 1,000 | ? | 41.9 | 40.1 | 5.5 | 2.9 | 2.0 | 1.4 | – | – | – | 1.8 |
| Noxa/La Vanguardia | 30 Jan–2 Feb 2006 | 1,000 | ? | 41.3 149/154 | 42.6 161/165 | 5.3 5/7 | 2.8 10 | 1.8 6 | 1.5 6/7 | – | – | – | 1.3 |
| CIS | 23–29 Jan 2006 | 2,484 | ? | 39.6 | 38.0 | 4.9 | 3.6 | 2.4 | 1.5 | – | – | – | 1.6 |
| Opina/El País | 26–27 Jan 2006 | 1,000 | ? | 41.0 | 40.0 | 4.0 | 3.0 | 2.0 | 1.5 | – | – | – | 1.0 |
| Opina/Cadena SER | 21 Jan 2006 | ? | ? | 42.0 | 39.0 | 5.0 | 3.5 | 1.7 | 1.5 | – | – | – | 3.0 |
| Metroscopia/ABC | 10–17 Jan 2006 | 1,000 | 73 | 39.3 | 40.4 | 5.6 | – | – | – | – | – | – | 1.1 |
| ASEP | 9–15 Jan 2006 | 1,207 | 76.4 | 39.8 | 39.7 | – | – | – | – | – | – | – | 0.1 |
| Opina/Cadena SER | 3 Jan 2006 | 1,000 | ? | 42.0 | 39.0 | 5.0 | 3.5 | 2.5 | 1.5 | – | – | – | 3.0 |
| Sigma Dos/El Mundo | 26–28 Dec 2005 | 800 | ? | 41.5 | 40.5 | 4.7 | 2.8 | 2.1 | 1.6 | – | – | – | 1.0 |
| ASEP | 12–18 Dec 2005 | 1,207 | 76.7 | 40.1 | 40.4 | – | – | – | – | – | – | – | 0.3 |
| Iberconsulta/La Razón | 5–16 Dec 2005 | 800 | 73.2 | 39.8 151/152 | 40.0 158/159 | 6.3 5 | 3.6 11 | ? 9 | 1.7 7 | ? 3 | ? 2 | – | 0.2 |
| Opina/Cadena SER | 7 Dec 2005 | ? | ? | 42.5 | 40.0 | 4.5 | 3.5 | 2.0 | 1.1 | – | – | – | 2.5 |
| ASEP | 14–20 Nov 2005 | 1,205 | 78.1 | 41.2 | 38.1 | – | – | – | – | – | – | – | 3.1 |
| Opina/Cadena SER | 17 Nov 2005 | 1,000 | ? | 42.0 | 40.0 | 4.5 | 3.5 | 2.3 | 1.0 | – | – | – | 2.0 |
| Noxa/La Vanguardia | 7–11 Nov 2005 | 1,200 | ? | 40.1 145/150 | 42.5 163/167 | 5.6 7 | 3.1 10 | 1.9 6 | 1.8 7 | – | ? 1/2 | – | 2.4 |
| Opina/El País | 7–8 Nov 2005 | 1,000 | ? | 41.0 | 40.0 | 5.5 | 3.5 | 2.5 | 1.5 | – | – | – | 1.0 |
| Iberconsulta/La Razón | 3–4 Nov 2005 | 800 | 74.2 | 39.5 153/155 | 39.1 154/156 | 6.6 6 | 3.6 11 | ? 8 | 1.8 7 | ? 3 | ? 2 | – | 0.4 |
| Opina/Cadena SER | 3 Nov 2005 | 1,000 | ? | 41.0 | 40.5 | 4.5 | 3.5 | 2.9 | 1.0 | – | – | – | 0.5 |
| CIS | 21–28 Oct 2005 | 2,489 | ? | 39.7 | 37.7 | 4.8 | 3.4 | 2.4 | 1.5 | – | – | – | 2.0 |
| ASEP | 17–23 Oct 2005 | 1,204 | 76.5 | 40.1 | 38.2 | – | – | – | – | – | – | – | 1.9 |
| Opina/Cadena SER | 14 Oct 2005 | 1,000 | ? | 42.0 | 40.5 | 4.0 | 3.5 | 2.4 | 1.0 | – | – | – | 1.5 |
| GESOP/El Periódico | 9–11 Oct 2005 | 1,000 | ? | 41.2 | 39.9 | 5.7 | 2.8 | 2.4 | 1.6 | – | – | – | 1.3 |
| Intercampo/GETS | 19 Sep–11 Oct 2005 | 1,721 | High | 39.6 | 38.1 | 5.3 | 3.7 | – | 1.6 | – | – | – | 1.5 |
| Intercampo/GETS | 19 Sep–11 Oct 2005 | 1,721 | Low | 39.9 | 37.8 | 5.4 | 3.0 | – | 1.8 | – | – | – | 2.1 |
| Sigma Dos/El Mundo | 4–6 Oct 2005 | 1,000 | ? | 40.1 | 40.6 | 5.4 | 3.1 | – | 1.6 | – | – | – | 0.5 |
| Opina/El País | 4–6 Oct 2005 | 1,300 | ? | 42.0 | 40.0 | 4.0 | 2.9 | 2.4 | 1.7 | – | – | – | 2.0 |
| Opina/Cadena SER | 1 Oct 2005 | ? | ? | 42.0 | 40.0 | 5.0 | 2.5 | 2.0 | 1.8 | – | – | – | 2.0 |
| Metroscopia/ABC | 23–29 Sep 2005 | 1,000 | 75 | 41.6 | 38.2 | 5.3 | – | – | – | – | – | – | 3.4 |
| ASEP | 19–25 Sep 2005 | 1,216 | 76.4 | 41.4 | 37.3 | – | – | – | – | – | – | – | 4.1 |
| Opina/El País | 19–20 Sep 2005 | 1,000 | ? | 44.0 | 38.0 | 4.5 | 3.2 | 2.5 | 1.5 | – | – | – | 6.0 |
| Opina/Cadena SER | 15 Sep 2005 | 1,000 | ? | 44.0 | 39.0 | 3.7 | 3.1 | 2.5 | 1.8 | – | – | – | 5.0 |
| Opina/Cadena SER | 1 Sep 2005 | ? | ? | 45.0 | 37.0 | 5.0 | 3.0 | 2.3 | 1.7 | – | – | – | 8.0 |
| Sigma Dos/El Mundo | 26–28 Jul 2005 | 1,000 | ? | 42.5 | 39.1 | 5.1 | 3.0 | – | 1.6 | – | – | – | 3.4 |
| CIS | 13–21 Jul 2005 | 2,425 | ? | 41.9 | 36.4 | 5.1 | 3.2 | 2.3 | 1.8 | – | – | – | 5.5 |
| ASEP | 4–10 Jul 2005 | 1,216 | 78.2 | 40.8 | 37.0 | – | – | – | – | – | – | – | 3.8 |
| Noxa/La Vanguardia | 4–7 Jul 2005 | 1,000 | ? | 45.8 172/176 | 36.4 136/142 | 5.6 7/8 | 3.0 10 | 1.6 5/6 | 1.5 6 | – | – | – | 9.4 |
| Metroscopia/ABC | 1–6 Jul 2005 | 1,000 | 69 | 43.8 | 37.4 | 3.5 | – | – | – | – | – | – | 6.4 |
| Opina/Cadena SER | 29 Jun 2005 | 1,000 | ? | 45.5 | 39.0 | 5.0 | 2.3 | 2.3 | 1.5 | – | – | – | 6.5 |
| GESOP/El Periódico | 27–29 Jun 2005 | 1,000 | ? | 42.8 | 37.9 | 6.0 | 2.8 | 2.6 | 1.7 | – | – | – | 4.9 |
| ASEP | 6–12 Jun 2005 | 1,222 | 77.4 | 42.2 | 37.5 | – | – | – | – | – | – | – | 4.7 |
| Opina/Cadena SER | 19 May 2005 | ? | ? | 45.0 | 38.0 | 3.8 | 3.2 | 2.5 | 1.5 | – | – | – | 7.0 |
| ASEP | 9–15 May 2005 | 1,200 | 77.6 | 43.3 | 36.5 | – | – | – | – | – | – | – | 6.8 |
| Opina/Cadena SER | 12 May 2005 | 1,000 | ? | 45.5 | 38.0 | 4.0 | 3.0 | 2.0 | 1.7 | – | – | – | 7.5 |
| Metroscopia/ABC | 27 Apr–5 May 2005 | 1,000 | 70 | 44.3 | 37.3 | 5.0 | – | – | – | – | – | – | 7.0 |
| CIS | 27 Apr–4 May 2005 | 2,477 | ? | 41.2 | 36.6 | 5.2 | 3.1 | 2.1 | 1.6 | – | – | – | 4.6 |
| GESOP/El Periódico | 22–26 Apr 2005 | 1,003 | ? | 43.2 | 38.2 | 5.9 | 2.8 | 2.2 | 1.6 | – | – | – | 5.0 |
| Opina/Cadena SER | 21 Apr 2005 | 1,000 | ? | 43.0 | 38.0 | 5.0 | 3.2 | 1.7 | 1.8 | – | – | – | 5.0 |
| ASEP | 11–17 Apr 2005 | 1,212 | 76.7 | 42.3 | 37.5 | – | – | – | – | – | – | – | 4.8 |
| Celeste-Tel/La Razón | 4–7 Apr 2005 | 800 | ? | 42.3 158/159 | 38.6 152/153 | 5.4 5 | 3.2 10/11 | ? 7/8 | 1.8 7 | ? 3 | ? 2/3 | – | 3.7 |
| ASEP | 14–19 Mar 2005 | 1,203 | 76.5 | 45.8 | 36.5 | – | – | – | – | – | – | – | 9.3 |
| Sigma Dos/El Mundo | 8–10 Mar 2005 | 800 | ? | 43.7 165 | 38.0 149 | 4.5 4 | 2.7 8 | 2.6 9 | 1.5 7 | – | – | – | 5.7 |
| Opina/Cadena SER | 9 Mar 2005 | 1,000 | ? | 44.0 | 38.0 | 5.0 | 3.2 | 1.4 | 1.7 | – | – | – | 6.0 |
| Opina/Cadena SER | 23 Feb 2005 | 1,000 | ? | 44.0 | 39.0 | 4.0 | 3.1 | 2.3 | 1.4 | – | – | – | 5.0 |
| ASEP | 14–19 Feb 2005 | 1,203 | 77.8 | 45.2 | 35.5 | – | – | – | – | – | – | – | 9.7 |
| Noxa/La Vanguardia | 7–10 Feb 2005 | 1,000 | ? | 45.3 170/173 | 36.7 138/141 | 5.2 6 | 3.1 10 | 2.4 7/8 | 2.1 8/10 | ? 3 | – | – | 8.6 |
| Opina/Cadena SER | 2 Feb 2005 | 1,000 | ? | 45.0 | 38.0 | 4.0 | 2.6 | 2.6 | 1.8 | – | – | – | 7.0 |
| CIS | 19–24 Jan 2005 | 2,495 | ? | 42.4 168 | 35.7 144 | 5.4 7 | 2.9 10 | 2.3 7 | 1.5 6 | – | – | – | 6.7 |
| GESOP/El Periódico | 19–22 Jan 2005 | 1,500 | ? | 43.8 | 37.8 | 5.9 | 2.7 | 1.8 | 1.9 | – | – | – | 6.0 |
| ASEP | 17–22 Jan 2005 | 1,212 | 79.3 | 44.7 | 36.4 | – | – | – | – | – | – | – | 8.3 |
| Opina/Cadena SER | 19 Jan 2005 | ? | ? | 45.0 | 37.0 | 4.5 | 2.8 | 2.5 | 1.4 | – | – | – | 8.0 |
| Sigma Dos/El Mundo | 4–5 Jan 2005 | 1,400 | ? | 43.1 | 38.2 | 4.9 | 3.0 | – | 1.5 | – | – | – | 4.9 |
| Opina/Cadena SER | 4 Jan 2005 | 1,350 | ? | 44.0 | 39.0 | 5.5 | 3.5 | 1.5 | 1.4 | – | – | – | 5.0 |
| Opina/El País | 15–16 Dec 2004 | 1,000 | ? | 45.0 173 | 36.5 140 | 4.5 4 | 3.5 12 | 2.0 6 | 1.8 7 | – | – | – | 8.5 |
| ASEP | 15 Dec 2004 | 1,212 | 74.6 | 41.8 | 36.5 | – | – | – | – | – | – | – | 5.3 |
| Opina/Cadena SER | 14 Dec 2004 | ? | ? | 45.0 | 37.0 | 4.5 | 3.0 | 2.4 | 1.8 | – | – | – | 8.0 |
| Sigma Dos/El Mundo | 1–2 Dec 2004 | 1,000 | ? | 42.8 | 38.7 | 4.8 | 2.6 | 2.4 | 1.6 | – | – | – | 4.1 |
| ASEP | 15–20 Nov 2004 | 1,206 | 77.2 | 43.2 | 37.7 | – | – | – | – | – | – | – | 5.5 |
| Opina/Cadena SER | 18 Nov 2004 | ? | ? | 45.0 | 38.0 | 4.0 | 3.5 | 2.5 | 1.5 | – | – | – | 7.0 |
| Opina/Cadena SER | 4 Nov 2004 | 1,000 | ? | 44.0 | 37.5 | 4.7 | 3.0 | 2.0 | 1.5 | – | – | – | 6.5 |
| CIS | 21–26 Oct 2004 | 2,494 | ? | 42.1 | 36.1 | 5.5 | 3.3 | 2.0 | 1.7 | – | – | – | 6.0 |
| Intercampo/GETS | 21 Sep–24 Oct 2004 | ? | ? | 40.7 | 36.5 | 5.8 | 3.0 | – | 1.6 | – | – | – | 4.2 |
| Opina/Cadena SER | 21 Oct 2004 | 1,000 | ? | 44.0 | 38.0 | 4.2 | 3.5 | 2.5 | 1.6 | – | – | – | 6.0 |
| Gallup | 1–21 Oct 2004 | 2,027 | 78.8 | 43.8 | 36.9 | 4.9 | 3.2 | 2.7 | 1.5 | – | – | – | 6.9 |
| ASEP | 15 Oct 2004 | 1,212 | 79.0 | 44.1 | 36.1 | – | – | – | – | – | – | – | 8.0 |
| Opina/Cadena SER | 7 Oct 2004 | 1,000 | ? | 45.0 | 38.0 | 4.5 | 2.5 | 2.5 | 1.8 | – | – | – | 7.0 |
| Sigma Dos/El Mundo | 5–7 Oct 2004 | ? | ? | 44.3 | 37.4 | 5.1 | 2.5 | 2.4 | 1.5 | – | – | – | 6.9 |
| Celeste-Tel/La Razón | 26 Sep 2004 | ? | 73.6 | 42.5 158/159 | 39.3 152/153 | 5.0 5 | 3.4 10/11 | 2.6 8 | ? 7 | – | – | – | 3.2 |
| GESOP/El Periódico | 22–24 Sep 2004 | 1,500 | ? | 43.6 | 38.3 | 5.7 | 2.8 | 2.1 | 1.7 | – | – | – | 5.3 |
| Opina/El País | 21–22 Sep 2004 | 1,000 | ? | 46.0 | 37.0 | 5.0 | 3.0 | 3.0 | 1.5 | – | – | – | 9.0 |
| Gallup | 1–21 Sep 2004 | 2,001 | 78.1 | 43.3 | 37.0 | 5.2 | 2.8 | 2.3 | 1.6 | – | – | – | 6.3 |
| Opina/Cadena SER | 16 Sep 2004 | ? | ? | 46.0 | 39.0 | 4.0 | 3.0 | 2.5 | 1.5 | – | – | – | 7.0 |
| ASEP | 15 Sep 2004 | 1,212 | 78.1 | 43.0 | 36.7 | – | – | – | – | – | – | – | 6.3 |
| Opina/Cadena SER | 2 Sep 2004 | ? | ? | 44.5 | 37.5 | 4.5 | 3.5 | 2.5 | 2.0 | – | – | – | 7.0 |
| Gallup | 1–26 Aug 2004 | 2,019 | 78.7 | 43.7 | 37.4 | 4.9 | 2.9 | 2.4 | 1.6 | – | – | – | 6.3 |
| Sigma Dos/El Mundo | 25 Jul 2004 | 1,000 | ? | 43.8 | 37.1 | 5.3 | 3.4 | – | 1.3 | – | – | – | 6.7 |
| Celeste-Tel/La Razón | 12–21 Jul 2004 | 601 | 72.0 | 41.5 159/160 | 39.9 152/153 | 5.2 5 | 3.4 10/11 | 2.6 8 | 1.7 7 | – | – | – | 1.6 |
| Gallup | 1–21 Jul 2004 | 2,019 | 78.2 | 42.0 | 37.8 | 5.4 | 3.1 | 2.5 | 1.5 | – | – | – | 4.2 |
| CIS | 9–16 Jul 2004 | 2,487 | 68.4 | 44.0 | 36.8 | 5.0 | 2.8 | 2.6 | 1.5 | – | – | – | 7.2 |
| ASEP | 15 Jul 2004 | 1,212 | 76.0 | 43.8 | 37.3 | – | – | – | – | – | – | – | 6.5 |
| Vox Pública/El Periódico | 28–30 Jun 2004 | 1,504 | ? | 44.2 | 38.7 | 5.7 | 2.5 | 2.0 | 1.3 | – | – | – | 5.5 |
| Gallup | 2–23 Jun 2004 | 2,024 | 79.5 | 43.8 | 36.3 | 5.2 | 3.2 | 2.2 | 1.6 | – | – | – | 7.5 |
| Opina/Cadena SER | 17 Jun 2004 | 1,000 | ? | 45.0 | 37.0 | 4.5 | 3.0 | 2.9 | 1.5 | – | – | – | 8.0 |
| ASEP | 15 Jun 2004 | 1,212 | 73.3 | 42.7 | 36.6 | – | – | – | – | – | – | – | 6.1 |
| 2004 EP election | 13 Jun 2004 | — | 45.1 | 43.5 (163) | 41.2 (157) | 4.1 (3) | 2.4 (9) | 1.8 (5) | 1.6 (7) | 0.6 (3) | 0.9 (2) | – | 2.3 |
| Sigma Dos/El Mundo | 1–2 Jun 2004 | 1,000 | ? | 42.6 | 37.9 | 5.2 | – | – | – | – | – | – | 4.7 |
| Opina/El País | 24 May 2004 | 1,000 | 75 | 45.0 | 37.0 | 4.5 | 2.5 | 2.5 | 1.5 | – | – | – | 8.0 |
| Gallup | 3–21 May 2004 | 2,021 | 79.6 | 44.7 | 35.8 | 5.4 | 3.2 | 2.5 | 1.5 | – | – | – | 8.9 |
| ASEP | 15 May 2004 | 1,212 | 78.9 | 46.9 | 33.3 | – | – | – | – | – | – | – | 13.6 |
| Opina/Cadena SER | 13 May 2004 | 1,000 | ? | 47.0 | 37.0 | 4.5 | 3.0 | – | 1.0 | – | – | – | 10.0 |
| CIS | 22–27 Apr 2004 | 2,493 | 77.6 | 45.8 | 35.4 | 4.9 | 2.7 | 2.3 | 1.3 | – | – | – | 10.4 |
| Sigma Dos/El Mundo | 26 Apr 2004 | ? | ? | 45.1 | 39.2 | 3.6 | – | – | – | – | – | – | 5.9 |
| Gallup | 1–21 Apr 2004 | 2,019 | 79.9 | 44.1 | 37.0 | 5.0 | 3.2 | 2.4 | 1.5 | – | – | – | 7.1 |
| ASEP | 15 Apr 2004 | 1,212 | 77.9 | 44.1 | 35.5 | – | – | – | – | – | – | – | 8.6 |
| Vox Pública/El Periódico | 13–15 Apr 2004 | 1,501 | ? | 45.0 | 36.9 | 5.5 | 2.7 | 2.2 | 1.4 | – | – | – | 8.1 |
| Opina/El País | 30 Mar 2004 | 1,000 | ? | 43.6 | 37.9 | 5.0 | 3.0 | – | 1.7 | – | – | – | 5.7 |
| Opina/Cadena SER | 18 Mar 2004 | ? | ? | 45.0 | 35.0 | 5.0 | 3.5 | – | 1.8 | – | – | – | 10.0 |
| 2004 general election | 14 Mar 2004 | — | 75.7 | 42.6 164 | 37.7 148 | 5.0 5 | 3.2 10 | 2.5 8 | 1.6 7 | 0.9 3 | 0.8 2 | – | 4.9 |

#### Voting preferences

The table below lists raw, unweighted voting preferences.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | PNV | | BNG | | ? | N | Lead |
| 2008 general election | 9 Mar 2008 | — | 32.7 | 30.0 | 2.8 | 2.3 | 0.9 | 0.9 | 0.5 | 0.6 | 0.9 | — | 24.7 | 2.7 |
| GESOP/El Periòdic | 4–6 Mar 2008 | 1,200 | 35.8 | 23.8 | – | – | – | – | – | – | – | – | – | 12.0 |
| GESOP/El Periòdic | 3–5 Mar 2008 | 1,000 | 35.0 | 25.4 | – | – | – | – | – | – | – | – | – | 9.6 |
| GESOP/El Periòdic | 3–4 Mar 2008 | 600 | 35.2 | 25.8 | – | – | – | – | – | – | – | – | – | 9.4 |
| Obradoiro de Socioloxía/Público | 26–28 Feb 2008 | 1,810 | 35.6 | 26.8 | 2.9 | – | – | – | – | – | – | – | – | 8.8 |
| Obradoiro de Socioloxía/Público | 25–27 Feb 2008 | ? | 36.3 | 27.1 | 3.3 | – | – | – | – | – | – | – | – | 9.2 |
| GESOP/El Periódico | 26 Feb 2008 | 600 | 37.8 | 25.8 | – | – | – | – | – | – | – | – | – | 12.0 |
| Obradoiro de Socioloxía/Público | 23–26 Feb 2008 | ? | 35.3 | 26.2 | 3.0 | – | – | – | – | – | – | – | – | 9.1 |
| Obradoiro de Socioloxía/Público | 22–25 Feb 2008 | 1,796 | 35.0 | 24.9 | 3.3 | – | – | – | – | – | – | – | – | 10.1 |
| Obradoiro de Socioloxía/Público | 21–23 Feb 2008 | ? | 33.8 | 24.9 | 2.5 | – | – | – | – | – | – | – | – | 8.9 |
| Obradoiro de Socioloxía/Público | 20–22 Feb 2008 | 1,812 | 31.3 | 24.8 | 2.9 | – | – | – | – | – | – | – | – | 6.5 |
| Obradoiro de Socioloxía/Público | 19–21 Feb 2008 | ? | 30.5 | 26.0 | 2.4 | – | – | – | – | – | – | – | – | 4.5 |
| Obradoiro de Socioloxía/Público | 18–20 Feb 2008 | 1,812 | 30.6 | 25.9 | 3.3 | – | – | – | – | – | – | – | – | 4.7 |
| ASEP | 11–17 Feb 2008 | 1,200 | 37.7 | 25.6 | 3.6 | 3.1* | 2.6** | * | * | ** | 0.7 | 14.4 | 8.7 | 12.1 |
| GESOP/El Periódico | 11–17 Feb 2008 | 1,500 | 38.1 | 28.8 | 4.4 | 1.5 | 1.1 | 1.1 | – | – | – | 14.3 | 4.0 | 9.3 |
| Metroscopia/El País | 15 Feb 2008 | 600 | 36.4 | 24.9 | – | – | – | – | – | – | – | – | – | 11.5 |
| Obradoiro de Socioloxía/Público | 7 Jan–12 Feb 2008 | 12,000 | 33.8 | 27.6 | 3.7 | – | – | – | – | – | – | – | – | 6.2 |
| Metroscopia/El País | 8 Feb 2008 | 600 | 36.2 | 24.8 | – | – | – | – | – | – | – | – | – | 11.4 |
| Obradoiro de Socioloxía/Público | 28 Jan–8 Feb 2008 | 4,008 | 33.6 | 26.3 | 3.4 | – | – | – | – | – | – | – | – | 7.3 |
| Simple Lógica | 23 Jan–4 Feb 2008 | 2,031 | 23.3 | 16.0 | 2.6 | 1.1 | 0.5 | – | – | – | – | 38.3 | 12.0 | 7.3 |
| CIS | 21 Jan–4 Feb 2008 | 18,221 | 31.0 | 21.1 | 3.5 | 1.6 | 0.9 | 0.6 | 0.3 | 0.4 | 0.4 | 26.7 | 8.5 | 9.9 |
| Obradoiro de Socioloxía/Público | 21–31 Jan 2008 | 4,009 | 33.9 | 25.2 | 3.8 | – | – | – | – | – | – | – | – | 8.7 |
| Obradoiro de Socioloxía/Público | 14–24 Jan 2008 | 4,007 | 35.6 | 27.3 | 3.4 | – | – | – | – | – | – | – | – | 8.3 |
| CIS | 14–21 Jan 2008 | 2,477 | 30.9 | 21.5 | 2.8 | 1.2 | 0.7 | 0.9 | 0.2 | 0.5 | 0.3 | 27.1 | 8.7 | 9.4 |
| ASEP | 14–20 Jan 2008 | 1,201 | 38.1 | 25.5 | 3.4 | 3.0* | 2.0** | * | * | ** | 0.1 | 13.1 | 10.4 | 12.6 |
| Metroscopia/El País | 17 Jan 2008 | 800 | 34.6 | 26.8 | 3.9 | – | – | – | – | – | – | 16.6 | 11.2 | 7.8 |
| Obradoiro de Socioloxía/Público | 7–17 Jan 2008 | 4,000 | 35.4 | 29.0 | 3.8 | – | – | – | – | – | – | – | – | 6.4 |
| Obradoiro de Socioloxía/Público | 20 Nov–21 Dec 2007 | 9,100 | 32.5 | 24.7 | 3.6 | – | – | – | – | – | – | – | – | 7.8 |
| ASEP | 10–16 Dec 2007 | 1,199 | 35.6 | 21.5 | 3.4 | 3.5* | 2.4** | * | * | ** | 0.3 | 17.8 | 10.4 | 14.1 |
| Obradoiro de Socioloxía/Público | 2 Dec 2007 | ? | 31.1 | 23.1 | 3.4 | – | – | – | – | – | – | – | – | 8.0 |
| Intercampo/GETS | 22 Nov 2007 | ? | 37.7 | 20.4 | 4.9 | 2.0 | 1.0 | 1.8 | – | – | – | 12.2 | 13.3 | 17.3 |
| ASEP | 12–18 Nov 2007 | 1,203 | 41.0 | 20.7 | 3.7 | 2.8* | 2.1** | * | * | ** | 0.3 | 15.6 | 10.3 | 20.3 |
| GESOP/El Periódico | 12–17 Nov 2007 | 1,500 | 40.9 | 26.9 | 4.1 | 1.5 | 1.1 | 1.2 | – | – | – | – | – | 14.0 |
| Obradoiro de Socioloxía/Público | 4 Nov 2007 | ? | 28.7 | 22.6 | 2.7 | – | – | – | – | – | – | – | – | 6.1 |
| CIS | 22–29 Oct 2007 | 2,493 | 32.5 | 22.4 | 4.0 | 2.1 | 1.4 | 1.1 | 0.2 | 0.6 | – | 18.1 | 11.6 | 10.1 |
| ASEP | 15–21 Oct 2007 | 1,202 | 37.0 | 22.3 | 3.6 | 2.4* | 2.4** | * | * | ** | 0.3 | 14.0 | 13.3 | 14.7 |
| DYM/ABC | 1–4 Oct 2007 | 1,000 | 28.3 | 21.8 | – | – | – | – | – | – | – | – | – | 6.5 |
| Obradoiro de Socioloxía/Público | 21–28 Sep 2007 | 3,067 | 27.9 | 22.9 | 2.8 | 1.3 | 1.0 | 0.8 | – | 0.4 | 0.3 | – | – | 5.0 |
| ASEP | 17–23 Sep 2007 | 1,213 | 40.2 | 20.6 | 3.6 | 2.7* | 2.7** | * | * | ** | 0.2 | 15.5 | 11.0 | 19.6 |
| CIS | 6–18 Jul 2007 | 2,483 | 32.8 | 23.0 | 4.9 | 1.4 | 1.1 | 1.0 | 0.6 | 0.6 | – | 16.9 | 12.6 | 9.8 |
| ASEP | 11–16 Jul 2007 | 1,200 | 38.9 | 21.4 | 3.7 | 3.5* | 2.0** | * | * | ** | – | 14.0 | 12.4 | 17.5 |
| ASEP | 11–16 Jun 2007 | 1,202 | 38.4 | 23.5 | 3.5 | 4.3* | 1.8** | * | * | ** | – | 12.9 | 10.3 | 14.9 |
| GESOP/El Periódico | 13–15 Jun 2007 | 800 | 41.1 | 27.6 | 4.5 | 1.1 | 1.0 | 1.0 | – | – | – | 19.0 | 19.0 | 13.5 |
| ASEP | 14–19 May 2007 | 1,213 | 36.6 | 22.7 | 3.7 | 3.0* | 2.2** | * | * | ** | – | 17.1 | 9.6 | 13.9 |
| CIS | 23–29 Apr 2007 | 2,455 | 30.7 | 19.9 | 3.7 | 1.6 | 1.4 | 0.8 | 0.4 | 0.6 | – | 22.9 | 11.0 | 10.8 |
| ASEP | 16–21 Apr 2007 | 1,212 | 38.2 | 20.9 | 4.0 | 4.1* | 2.8** | * | * | ** | – | 14.1 | 10.5 | 17.3 |
| ASEP | 12–17 Mar 2007 | 1,203 | 39.0 | 21.0 | 2.2 | 4.0* | 2.8** | * | * | ** | – | 14.4 | 12.0 | 18.0 |
| GESOP/El Periódico | 11–15 Mar 2007 | 1,500 | 37.4 | 30.0 | 5.1 | 1.5 | 1.1 | 0.7 | – | – | – | 20.3 | 20.3 | 7.4 |
| ASEP | 12–17 Feb 2007 | 1,208 | 33.0 | 22.7 | 3.3 | 3.3* | 2.6** | * | * | ** | – | 16.9 | 13.8 | 10.3 |
| CIS | 22–31 Jan 2007 | 2,472 | 29.1 | 19.3 | 4.6 | 1.7 | 1.1 | 0.8 | 0.3 | 0.7 | – | 23.3 | 13.4 | 9.8 |
| ASEP | 15–20 Jan 2007 | 1,201 | 36.1 | 18.7 | 2.7 | 4.2* | 2.3** | * | * | ** | – | 16.9 | 15.2 | 17.4 |
| Metroscopia/ABC | 3 Jan 2007 | 605 | 24.5 | 21.2 | – | – | – | – | – | – | – | – | – | 3.3 |
| ASEP | 10–17 Dec 2006 | 1,191 | 34.1 | 20.4 | 3.2 | 4.1* | 2.7** | * | * | ** | – | 16.7 | 14.2 | 13.7 |
| Ipsos/PSOE | 12 Dec 2006 | ? | 39.3 | 32.9 | – | – | – | – | – | – | – | – | – | 6.4 |
| ASEP | 12–16 Nov 2006 | 1,206 | 36.6 | 20.2 | 3.3 | 5.0* | 1.5** | * | * | ** | – | 14.5 | 14.7 | 16.4 |
| CIS | 18–25 Oct 2006 | 2,481 | 31.2 | 20.3 | 3.7 | 1.9 | 1.4 | 1.0 | 0.1 | 0.4 | – | 21.8 | 11.8 | 10.9 |
| Intercampo/GETS | 19 Sep–22 Oct 2006 | 1,735 | 37.5 | 22.5 | 3.6 | 1.4 | 1.1 | 0.8 | – | – | – | 13.1 | 12.5 | 15.0 |
| Metroscopia/ABC | 29 Sep–4 Oct 2006 | 1,000 | 27.2 | 19.2 | – | – | – | – | – | – | – | – | – | 8.0 |
| ASEP | 17–24 Sep 2006 | 1,202 | 34.1 | 22.0 | 3.0 | 2.8* | 2.4** | * | * | ** | – | 19.8 | 12.7 | 12.1 |
| CIS | 10–16 Jul 2006 | 2,482 | 31.5 | 21.0 | 3.5 | 2.3 | 1.7 | 0.8 | 0.5 | 0.5 | – | 19.4 | 12.7 | 10.5 |
| ASEP | 3–9 Jul 2006 | 1,213 | 39.4 | 19.4 | 2.5 | 2.6* | 3.1** | * | * | ** | – | 14.8 | 13.5 | 20.0 |
| GESOP/El Periódico | 30 Jun–4 Jul 2006 | 1,000 | 40.1 | 27.8 | 3.4 | 1.3 | 1.2 | 0.5 | – | – | – | 22.5 | 22.5 | 12.3 |
| ASEP | 5–11 Jun 2006 | 1,205 | 38.7 | 19.5 | 3.6 | 4.0* | 2.5** | * | * | ** | – | 18.1 | 10.1 | 19.2 |
| Metroscopia/ABC | 2 Jun 2006 | ? | 34.3 | 19.4 | – | – | – | – | – | – | – | – | – | 14.9 |
| ASEP | 8–14 May 2006 | 1,201 | 38.0 | 20.1 | 4.4 | 3.7* | 2.1** | * | * | ** | – | 16.6 | 10.9 | 17.9 |
| CIS | 24–30 Apr 2006 | 2,481 | 34.4 | 22.9 | 3.7 | 1.5 | 1.2 | 1.0 | 0.3 | 0.6 | – | 19.3 | 9.3 | 11.5 |
| GESOP/El Periódico | 19–22 Apr 2006 | 1,002 | 38.8 | 29.8 | 4.4 | 1.2 | 1.6 | 1.6 | – | – | – | 19.6 | 19.6 | 9.0 |
| ASEP | 3–9 Apr 2006 | 1,206 | 38.5 | 22.4 | 2.9 | 4.0* | 2.3** | * | * | ** | – | 15.6 | 11.9 | 16.1 |
| Metroscopia/ABC | 28–30 Mar 2006 | 1,003 | 35.5 | 19.5 | – | – | – | – | – | – | – | – | – | 16.0 |
| ASEP | 6–12 Mar 2006 | 1,200 | 34.4 | 22.1 | 3.3 | 4.2* | 2.2** | * | * | ** | – | 18.2 | 11.7 | 12.3 |
| ASEP | 6–12 Feb 2006 | 1,209 | 32.8 | 24.1 | 3.3 | 3.8* | 2.5** | * | * | ** | – | 16.8 | 11.7 | 8.7 |
| GESOP/El Periódico | 30 Jan–2 Feb 2006 | 1,000 | 37.3 | 30.4 | 4.0 | 2.3 | 1.0 | 1.0 | – | – | – | 19.5 | 19.5 | 6.9 |
| CIS | 23–29 Jan 2006 | 2,484 | 29.5 | 22.2 | 3.3 | 1.5 | 1.2 | 1.0 | 0.5 | 0.6 | – | 24.1 | 11.1 | 7.3 |
| Metroscopia/ABC | 10–17 Jan 2006 | 1,000 | 30.0 | 25.9 | – | – | – | – | – | – | – | – | – | 4.1 |
| ASEP | 9–15 Jan 2006 | 1,207 | 34.3 | 24.0 | 3.4 | 3.5* | 1.9** | * | * | ** | – | 16.5 | 12.5 | 10.3 |
| ASEP | 12–18 Dec 2005 | 1,207 | 36.3 | 23.4 | 3.6 | 3.6* | 1.7** | * | * | ** | – | 13.5 | 12.7 | 12.9 |
| Celeste-Tel/Terra | 21 Nov–2 Dec 2005 | 1,357 | 31.1 | 23.5 | 3.4 | 2.1 | 1.7 | 1.1 | 0.3 | 0.4 | – | 18.1 | 13.1 | 7.6 |
| ASEP | 14–20 Nov 2005 | 1,205 | 34.8 | 21.6 | 4.7 | 3.7* | 2.2** | * | * | ** | – | 17.9 | 11.2 | 13.2 |
| CIS | 21–28 Oct 2005 | 2,489 | 30.0 | 22.3 | 3.2 | 2.0 | 1.4 | 1.0 | 0.2 | 0.4 | – | 24.1 | 11.4 | 7.7 |
| ASEP | 17–23 Oct 2005 | 1,204 | 35.3 | 20.7 | 3.2 | 4.2* | 2.3** | * | * | ** | – | 17.8 | 12.1 | 14.6 |
| GESOP/El Periódico | 9–11 Oct 2005 | 1,000 | 36.3 | 32.1 | 5.1 | 2.2 | 1.8 | 1.0 | – | – | – | 18.1 | 18.1 | 4.2 |
| Metroscopia/ABC | 23–29 Sep 2005 | 1,000 | 28.9 | 24.8 | 4.0 | – | – | – | – | – | – | 23.2 | 9.5 | 4.1 |
| ASEP | 19–25 Sep 2005 | 1,216 | 37.6 | 20.9 | 3.5 | 3.6* | 1.7** | * | * | ** | – | 15.7 | 12.7 | 16.7 |
| CIS | 13–21 Jul 2005 | 2,425 | 33.1 | 20.5 | 3.4 | 1.6 | 1.7 | 1.2 | 0.2 | 0.9 | – | 21.3 | 11.2 | 12.6 |
| ASEP | 4–10 Jul 2005 | 1,216 | 37.9 | 22.8 | 3.6 | 3.7* | 1.6** | * | * | ** | – | 15.4 | 9.9 | 15.1 |
| Metroscopia/ABC | 1–6 Jul 2005 | 1,000 | 33.1 | 23.5 | 2.4 | 0.8 | 2.0 | 1.1 | – | – | – | 24.4 | 6.7 | 9.6 |
| GESOP/El Periódico | 27–29 Jun 2005 | 1,000 | 32.7 | 23.5 | 4.6 | 1.4 | 1.5 | 1.5 | – | – | – | – | – | 9.2 |
| ASEP | 6–12 Jun 2005 | 1,222 | 41.4 | 21.5 | 3.7 | 3.5* | 2.1** | * | * | ** | – | 13.8 | 10.5 | 19.9 |
| ASEP | 9–15 May 2005 | 1,200 | 43.4 | 22.7 | 3.1 | 3.9* | 1.6** | * | * | ** | – | 13.1 | 9.2 | 20.7 |
| Metroscopia/ABC | 27 Apr–5 May 2005 | 1,000 | 35.2 | 22.3 | 3.5 | 1.2 | 0.5 | 1.1 | – | – | – | 22.1 | 7.9 | 12.9 |
| CIS | 27 Apr–4 May 2005 | 2,477 | 34.9 | 21.8 | 4.3 | 2.1 | 1.0 | 1.2 | 0.4 | 0.7 | – | 18.1 | 10.7 | 13.1 |
| GESOP/El Periódico | 22–26 Apr 2005 | 1,003 | 35.5 | 25.6 | 4.8 | 1.5 | 1.4 | 0.8 | – | – | – | 27.4 | 27.4 | 9.9 |
| ASEP | 11–17 Apr 2005 | 1,212 | 38.6 | 21.2 | 3.6 | 2.8* | 2.1** | * | * | ** | – | 15.9 | 12.5 | 17.4 |
| ASEP | 14–19 Mar 2005 | 1,203 | 40.8 | 22.6 | 2.6 | 4.1* | 2.3** | * | * | ** | – | 14.2 | 10.7 | 18.2 |
| ASEP | 14–19 Feb 2005 | 1,203 | 42.1 | 21.6 | 3.7 | 3.8* | 2.2** | * | * | ** | – | 14.8 | 9.1 | 20.5 |
| CIS | 19–24 Jan 2005 | 2,495 | 36.5 | 21.2 | 3.6 | 1.7 | 1.1 | 1.0 | 0.5 | 0.4 | – | 20.6 | 8.9 | 15.3 |
| GESOP/El Periódico | 19–22 Jan 2005 | 1,500 | 37.4 | 23.1 | 5.0 | 1.1 | 1.1 | 1.0 | – | – | – | 17.3 | 7.8 | 14.3 |
| ASEP | 17–22 Jan 2005 | 1,212 | 44.1 | 21.9 | 3.2 | 3.6* | 2.4** | * | * | ** | – | 12.5 | 9.4 | 22.2 |
| Metroscopia/ABC | 14–16 Dec 2004 | 1,302 | 27.6 | 20.8 | – | – | – | – | – | – | – | – | – | 6.8 |
| ASEP | 15 Dec 2004 | 1,212 | 36.7 | 19.9 | 4.4 | 5.7* | 2.4** | * | * | ** | – | 16.1 | 10.3 | 16.8 |
| ASEP | 15–20 Nov 2004 | 1,206 | 41.8 | 21.3 | 3.9 | 3.4* | 2.8** | * | * | ** | – | 14.9 | 9.6 | 20.5 |
| CIS | 21–26 Oct 2004 | 2,494 | 35.5 | 20.7 | 4.0 | 1.9 | 1.6 | 0.8 | 0.3 | 0.7 | – | 21.5 | 9.0 | 14.8 |
| Gallup | 1–21 Oct 2004 | 2,027 | 36.3 | 18.3 | 4.1 | 1.6 | 1.2 | 0.8 | – | – | – | 19.4 | 15.8 | 18.0 |
| ASEP | 15 Oct 2004 | 1,212 | 41.9 | 20.7 | 3.7 | 4.7* | 1.8** | * | * | ** | – | 14.8 | 8.2 | 21.2 |
| Metroscopia/ABC | 3 Oct 2004 | 803 | 33.7 | 18.9 | – | – | – | – | – | – | – | – | – | 14.8 |
| GESOP/El Periódico | 22–24 Sep 2004 | 1,500 | 36.0 | 26.3 | 4.3 | 1.4 | 0.9 | – | – | – | – | 15.8 | 7.5 | 9.7 |
| Gallup | 1–21 Sep 2004 | 2,001 | 35.9 | 17.9 | 2.3 | 0.9 | 0.6 | 0.4 | – | – | – | 23.3 | 15.9 | 18.0 |
| ASEP | 15 Sep 2004 | 1,212 | 41.6 | 22.3 | 2.8 | 3.8* | 2.8** | * | * | ** | – | 15.0 | 8.8 | 19.3 |
| Gallup | 1–26 Aug 2004 | 2,019 | 37.6 | 19.3 | 2.7 | 0.7 | 0.6 | 0.5 | – | – | – | 19.8 | 15.2 | 18.3 |
| Gallup | 1–21 Jul 2004 | 2,019 | 38.7 | 17.1 | 3.8 | 0.8 | 0.5 | 0.7 | – | – | – | 19.8 | 15.4 | 21.6 |
| CIS | 9–16 Jul 2004 | 2,487 | 39.2 | 19.5 | 3.3 | 1.4 | 1.6 | 1.0 | 0.4 | 0.5 | – | 20.0 | 9.1 | 19.7 |
| ASEP | 15 Jul 2004 | 1,212 | 44.6 | 20.3 | 3.9 | 3.2* | 2.4** | * | * | ** | – | 14.8 | 7.5 | 24.3 |
| Gallup | 2–23 Jun 2004 | 2,024 | 35.2 | 19.9 | 3.4 | 1.1 | 0.9 | 1.0 | – | – | – | 22.8 | 13.6 | 15.3 |
| ASEP | 15 Jun 2004 | 1,212 | 43.3 | 21.9 | 3.8 | 5.2* | 2.2** | * | * | ** | – | 12.4 | 8.2 | 21.4 |
| 2004 EP election | 13 Jun 2004 | — | 19.7 | 18.8 | 1.9 | 1.1 | 0.8 | 0.7 | 0.2 | 0.4 | – | — | 54.1 | 0.9 |
| Gallup | 3–21 May 2004 | 2,021 | 43.3 | 17.4 | 4.0 | 1.0 | 0.9 | 1.1 | – | – | – | 18.5 | 11.8 | 25.9 |
| ASEP | 15 May 2004 | 1,212 | 48.0 | 18.9 | 3.1 | 5.1* | 1.9** | * | * | ** | – | 13.9 | 6.7 | 29.1 |
| CIS | 22–27 Apr 2004 | 2,493 | 44.4 | 20.4 | 4.2 | 1.6 | 1.9 | 0.8 | 0.3 | 0.7 | – | 16.5 | 6.0 | 24.0 |
| Gallup | 1–21 Apr 2004 | 2,019 | 34.8 | 20.8 | 3.4 | 1.0 | 0.5 | 2.2 | – | – | – | 22.0 | 12.6 | 14.0 |
| TNS Demoscopia/ABC | 17 Apr 2004 | 600 | 35.8 | 16.8 | 2.7 | 1.0 | 1.7 | 0.8 | 0.2 | 0.7 | – | 30.3 | 7.0 | 19.0 |
| ASEP | 15 Apr 2004 | 1,212 | 41.8 | 22.2 | 4.4 | 4.8* | 4.3** | * | * | ** | – | 13.9 | 6.3 | 19.6 |
| Vox Pública/El Periódico | 13–15 Apr 2004 | 1,501 | 38.9 | 26.2 | 3.9 | 1.9 | – | 0.9 | – | – | – | 11.2 | 8.5 | 12.7 |
| ASEP | 15–20 Mar 2004 | 1,212 | 42.7 | 24.2 | 4.6 | 5.5* | 3.6** | * | * | ** | – | 11.1 | 5.2 | 18.5 |
| 2004 general election | 14 Mar 2004 | — | 32.7 | 28.8 | 3.8 | 2.5 | 1.9 | 1.2 | 0.7 | 0.6 | – | — | 22.7 | 3.9 |
| (*) Includes data for CiU, PNV, EA, CG, PA, UPN, UV and CC. (**) Includes data for ERC, BNG, ICV, CHA and NaBai. |||||||||||||||

#### Victory preference

The table below lists opinion polling on the victory preferences for each party in the event of a general election taking place.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | | | | PNV | Other/ None | ? | Lead |
| Sigma Dos/The Times | 5 Mar 2008 | 1,000 | 42.8 | 33.4 | 4.3 | – | – | – | 3.2 | 16.3 | 9.4 |
| Noxa/La Vanguardia | 26–29 Feb 2008 | 1,200 | 51.0 | 35.0 | 3.0 | 1.0 | 1.0 | – | 5.0 | 4.0 | 16.0 |
| Metroscopia/El País | 8–27 Feb 2008 | 8,750 | 53.0 | 33.0 | – | – | – | – | – | – | 20.0 |
| Metroscopia/El País | 22 Feb 2008 | 600 | 54.0 | 31.0 | – | – | – | – | – | – | 23.0 |
| Metroscopia/El País | 15 Feb 2008 | 600 | 51.0 | 32.0 | – | – | – | – | – | – | 19.0 |
| Noxa/La Vanguardia | 8–14 Feb 2008 | 1,800 | 47.0 | 35.0 | 4.0 | 1.0 | 1.0 | – | 6.0 | 6.0 | 12.0 |
| Metroscopia/El País | 8 Feb 2008 | 600 | 51.0 | 32.0 | – | – | – | – | – | – | 19.0 |
| CIS | 21 Jan–4 Feb 2008 | 18,221 | 40.0 | 25.3 | 3.4 | 1.2 | 0.6 | 0.4 | 2.8 | 26.3 | 14.7 |
| Metroscopia/El País | 26–30 Jan 2008 | 2,000 | 54.0 | 33.0 | – | – | – | – | – | – | 21.0 |
| Noxa/La Vanguardia | 11–16 Jan 2008 | 1,000 | 47.0 | 37.0 | 4.0 | 1.0 | 1.0 | 1.0 | 3.0 | 6.0 | 10.0 |
| Ipsos/Expansión | 14–16 Dec 2007 | 1,000 | 47.0 | 35.0 | – | – | – | – | – | – | 12.0 |
| Noxa/La Vanguardia | 28 Nov–12 Dec 2007 | 2,000 | 47.0 | 34.0 | 5.0 | 1.0 | – | 1.0 | 7.0 | 5.0 | 13.0 |
| Noxa/La Vanguardia | 28 Sep–3 Oct 2007 | 1,000 | 44.0 | 36.0 | – | – | – | – | – | – | 8.0 |
| Ipsos/Expansión | 1–3 Jun 2007 | ? | 41.0 | 37.0 | – | – | – | – | – | – | 4.0 |
| Ipsos/Expansión | 1–3 Jun 2007 | ? | 39.0 | 35.0 | – | – | – | – | – | – | 4.0 |
| Noxa/La Vanguardia | 15–18 Jan 2007 | 1,000 | 44.0 | 30.0 | – | – | – | – | – | – | 14.0 |
| Noxa/La Vanguardia | 10–13 Jul 2006 | 1,000 | 46.0 | 34.0 | – | – | – | – | – | – | 12.0 |
| Noxa/La Vanguardia | 4–7 Jul 2005 | 1,000 | 45.0 | 32.0 | 4.0 | 1.0 | 1.0 | 1.0 | – | – | 13.0 |
| Noxa/La Vanguardia | 7–10 Feb 2005 | 1,000 | 49.0 | 31.0 | 4.0 | 1.0 | 2.0 | 1.0 | – | – | 18.0 |

#### Victory likelihood

The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a general election taking place.

##### Color key

Poll conducted after legal ban on opinion polls
| Polling firm/Commissioner | Fieldwork date | Sample size | | | Other/ None | ? | Lead |
| Sigma Dos/The Times | 5 Mar 2008 | 1,000 | 68.9 | 13.7 | – | 17.4 | 55.2 |
| Noxa/La Vanguardia | 26–29 Feb 2008 | 1,200 | 68.0 | 16.0 | 1.0 | 15.0 | 52.0 |
| Metroscopia/El País | 8–27 Feb 2008 | 8,750 | 60.0 | 16.0 | 24.0 | 24.0 | 44.0 |
| Metroscopia/El País | 15 Feb 2008 | 600 | 62.0 | 13.0 | 25.0 | 25.0 | 49.0 |
| Noxa/La Vanguardia | 8–14 Feb 2008 | 1,800 | 63.0 | 19.0 | 1.0 | 17.0 | 44.0 |
| Metroscopia/El País | 8 Feb 2008 | 600 | 55.0 | 17.0 | 28.0 | 28.0 | 38.0 |
| CIS | 21 Jan–4 Feb 2008 | 18,221 | 52.4 | 15.3 | 2.8 | 29.6 | 37.1 |
| Metroscopia/El País | 26–30 Jan 2008 | 2,000 | 60.0 | 18.0 | 22.0 | 22.0 | 42.0 |
| Noxa/La Vanguardia | 11–16 Jan 2008 | 1,000 | 55.0 | 23.0 | 2.0 | 20.0 | 32.0 |
| Ipsos/Expansión | 11–13 Jan 2008 | ? | 40.0 | 38.0 | – | – | 2.0 |
| Ipsos/Expansión | 14–16 Dec 2007 | ? | 54.0 | 27.0 | – | – | 27.0 |
| Noxa/La Vanguardia | 28 Nov–12 Dec 2007 | 2,000 | 59.0 | 23.0 | 1.0 | 17.0 | 36.0 |
| Sigma Dos/El Mundo | 28–31 Aug 2007 | 800 | 54.2 | 25.5 | – | 20.3 | 28.7 |
| Ipsos/Expansión | 1–3 Jun 2007 | ? | 32.0 | 48.0 | – | – | 16.0 |
| Ipsos/Expansión | 1–3 Jun 2007 | ? | 42.0 | 35.0 | – | – | 7.0 |
| Metroscopia/ABC | 28–30 Mar 2006 | 1,003 | 64.0 | 18.0 | 18.0 | 18.0 | 46.0 |