# 2009 Brandenburg state election

The 2009 Brandenburg state election was held on 27 September 2009 to elect the members of the 5th Landtag of Brandenburg. It took place on the same day as the 2009 federal election and 2009 Schleswig-Holstein state election. The incumbent government of the Social Democratic Party (SPD) and Christian Democratic Union (CDU) led by Minister-President Matthias Platzeck took small losses, but retained a majority. However, the SPD chose to form a government with The Left rather than continue the SPD–CDU coalition.
The election saw the Free Democratic Party and The Greens re-enter the Landtag for the first time since the 1990 election, while the German People's Union lost all its seats.

## Parties

The table below lists parties represented in the 4th Landtag of Brandenburg.
| Name | Name | Name | Ideology | Leader(s) | 2004 result | 2004 result |
| Name | Name | Name | Ideology | Leader(s) | Votes (%) | Seats |
| | SPD | Social Democratic Party of Germany Sozialdemokratische Partei Deutschlands | Social democracy | Matthias Platzeck | 31.9% | 33 / 88 |
| | Linke | The Left Die Linke | Democratic socialism | Kerstin Kaiser | 28.0% | 29 / 88 |
| | CDU | Christian Democratic Union of Germany Christlich Demokratische Union Deutschlands | Christian democracy | Johanna Wanka | 19.4% | 20 / 88 |
| | DVU | German People's Union Deutsche Volksunion | German nationalism | Liane Hesselbarth | 6.1% | 6 / 88 |

## Opinion polling

| Polling firm | Fieldwork date | Sample size | SPD | Linke | CDU | DVU/ NPD | FDP | Grüne | Others | Lead |
| 2009 state election | 27 Sep 2009 | – | 33.0 | 27.2 | 19.8 | 3.7 | 7.2 | 5.6 | 6.1 | 5.8 |
| Forschungsgruppe Wahlen | 14–17 Sep 2009 | 1,000 | 32 | 27 | 22 | – | 7 | 5 | 7 | 5 |
| Infratest dimap | 14–15 Sep 2009 | 1,000 | 34 | 28 | 21 | 1 | 7 | 4 | 5 | 6 |
| Infratest dimap | 4–7 Sep 2009 | 1,001 | 31 | 28 | 22 | 4 | 8 | 4 | 3 | 3 |
| Infratest dimap | 7–10 May 2009 | 1,000 | 34 | 27 | 22 | 4 | 6 | 5 | 2 | 7 |
| GESS | 24–31 Mar 2009 | 1,003 | 34 | 25 | 21 | 4 | 7 | 5 | 4 | 9 |
| Infratest | 2–22 Feb 2009 | 1,000 | 35 | 26 | 22 | – | 6 | 5 | 6 | 9 |
| Emnid | 26 Jan–6 Feb 2009 | 1,001 | 36 | 26 | 21 | 3 | 7 | 5 | 2 | 10 |
| Infratest dimap | 11–14 Sep 2008 | 1,000 | 36 | 27 | 20 | 4 | 6 | 4 | 3 | 9 |
| Forsa | 1–15 Apr 2008 | 1,084 | 30 | 30 | 21 | – | 5 | 5 | 9 | Tie |
| Infratest dimap | 2–6 Apr 2008 | 1,000 | 35 | 30 | 21 | – | 5 | 5 | 4 | 5 |
| Emnid | 13–27 Feb 2008 | ~500 | 38 | 26 | 22 | 1 | 4 | 4 | ? | 12 |
| Infratest | 21 Jan–7 Feb 2008 | 1,000 | 40 | 26 | 21 | ? | 5 | 4 | ? | 14 |
| Emnid | 3–15 Dec 2007 | 1,002 | 37 | 26 | 21 | 5 | 5 | 4 | 2 | 11 |
| Infratest dimap | 25–28 Oct 2007 | 1,000 | 40 | 24 | 23 | 3 | 4 | 4 | 2 | 16 |
| Infratest dimap | 8–13 Mar 2007 | 1,000 | 39 | 25 | 21 | 3 | 5 | 4 | 3 | 14 |
| Infratest | 26 Feb–4 Mar 2007 | 1,000 | 39 | 26 | 19 | – | 6 | 4 | 6 | 13 |
| Infratest dimap | 17–20 Nov 2006 | 1,000 | 40 | 23 | 21 | 5 | 6 | 3 | 2 | 17 |
| Infratest dimap | 28–30 May 2006 | 1,000 | 39 | 24 | 23 | 3 | 5 | 3 | 3 | 13 |
| Forsa | 7 Apr 2005 | ~1,000 | 37 | 25 | 18 | – | 4 | 4 | 12 | 12 |
| Infratest | 2–6 Dec 2005 | 752 | 39 | 27 | 21 | – | 4 | 4 | 5 | 12 |
| Infratest dimap | 11–15 Aug 2005 | 1,000 | 36 | 31 | 22 | – | 4 | 4 | 3 | 5 |
| Infratest dimap | 1–6 Jun 2005 | 1,000 | 34 | 23 | 29 | – | 4 | 5 | 5 | 5 |
| 2004 state election | 19 Sep 2004 | – | 31.9 | 28.0 | 19.4 | 6.1 | 3.3 | 3.6 | 7.7 | 3.9 |

## Election result

Summary of the 27 September 2009 election results for the Landtag of Brandenburg :
| Party | Party | Votes | % | +/– | Seats | +/– |
| | Social Democratic Party (SPD) | 458,840 | 33.04 | 1.13 | 31 | 2 |
| | The Left (Linke) | 377,112 | 27.16 | 0.80 | 26 | 3 |
| | Christian Democratic Union (CDU) | 274,825 | 19.79 | 0.36 | 19 | 1 |
| | Free Democratic Party (FDP) | 100,123 | 7.21 | 3.88 | 7 | 7 |
| | Alliance 90/The Greens (Grüne) | 78,550 | 5.66 | 2.06 | 5 | 6 |
| | National Democratic Party (NPD) | 35,544 | 2.56 | 2.56 | 0 | |
| | Free Voters (FW) | 23,296 | 1.68 | New | 0 | New |
| | German People's Union (DVU) | 15,903 | 1.15 | 4.93 | 0 | 6 |
| | Others | 24,529 | 1.77 | | 0 | |
| Total | Total | 1,388,722 | 100.00 | – | 88 | – |
| Registered voters/turnout | Registered voters/turnout | | 67.0 | 10.6 | | |