Spanish general election, 1989 Opinion polls 176 seats needed for a majority

| Polling_Firm | Date_ | Link | PSOE | Others_ | Lead_ |
|---|---|---|---|---|---|
| CIS | October 5 | HTML | 43.0% 178–180 | – | 22.0% |
| Metra Seis | September 19–22 | HTML | – 172–179 | – 26–28 | – |
| European Election (seat extrapolation) | June 15, 1989 | HTML | 39.6% 186 | 21.5% 28 | 18.2% |
| Opina | June 4 | HTML | 36.1% | 17.3% | 13.7% |
| Opina | January 17–18 | HTML | 37.9% | 13.0% | 14.8% |
| 1989 | 1989 | 1989 | 1989 | 1989 | 1989 |
| Opina | November 29–30 | HTML | 34.3% | 13.7% | 7.2% |
| 1988 | 1988 | 1988 | 1988 | 1988 | 1988 |
| European Election (seat extrapolation) | June 10, 1987 | HTML | 39.1% 169 | 16.2% 25 | 14.4% |
| Local Elections | June 10, 1987 | HTML | 37.1% | 20.3% | 16.7% |
| 1987 | 1987 | 1987 | 1987 | 1987 | 1987 |
| Gallup | October 19–December 23 | HTML | 42.0% | – | 18.9% |
| Election Results | June 22, 1986 | HTML | 44.1% 184 | 11.1% 17 | 18.1% |