Percentage of votes
| Specification | Votes 2014 | Votes 2009 | Diff. on 2009 in p.p. | ||
|---|---|---|---|---|---|
| Number | % | Number | % | ||
| Persons entitled to vote | 1,821,933 | – | 1,918,215 | – | – |
| Voters | 940,373 | 51.6 | 1,017,160 | 53.0 | -1.4 |
| Invalid | 26,096 | 2.8 | 37,508 | 3.7 | -0.9 |
| Valid | 914,277 | 97.2 | 979,652 | 96.3 | +0.9 |
| CDU | 290,703 | 31.8 | 304,858 | 31.1 | +0.7 |
| DIE LINKE | 205,763 | 22.5 | 232,995 | 23.8 | -1.3 |
| SPD | 167,816 | 18.4 | 153,918 | 15.7 | +2.6 |
| FDP | 19,156 | 2.1 | 80,085 | 8.2 | -6.1 |
| GRÜNE | 45,432 | 5.0 | 56,473 | 5.8 | -0.8 |
| FAMILIE | 15,492 | 1.7 | 23,099 | 2.4 | -0.7 |
| REP | 5,471 | 0.6 | 21,765 | 2.2 | -1.6 |
| FREIE WÄHLER | 16,848 | 1.8 | 16,855 | 1.7 | +0.1 |
| Tierschutzpartei | 13,017 | 1.4 | 16,072 | 1.6 | -0.2 |
| PIRATEN | 12,979 | 1.4 | 8,910 | 0.9 | +0.5 |
| Volksabstimmung | 5,018 | 0.5 | 4,945 | 0.5 | ±0.0 |
| AUF | 1,975 | 0.2 | 2,471 | 0.3 | ±0.0 |
| PBC | 945 | 0.1 | 1,608 | 0.2 | -0.1 |
| DKP | 1,248 | 0.1 | 1,515 | 0.2 | ±0.0 |
| ÖDP | 3,275 | 0.4 | 1,467 | 0.1 | +0.2 |
| CM | 736 | 0.1 | 1,081 | 0.1 | ±0.0 |
| BP | 540 | 0.1 | 627 | 0.1 | ±0.0 |
| BüSo | 367 | 0.0 | 562 | 0.1 | ±0.0 |
| PSG | 498 | 0.1 | 500 | 0.1 | ±0.0 |
| AfD | 68,011 | 7.4 | – | – | – |
| PRO NRW | 522 | 0.1 | – | – | – |
| MLPD | 1,256 | 0.1 | – | – | – |
| NPD | 31,025 | 3.4 | – | – | – |
| Die PARTEI | 6,184 | 0.7 | – | – | – |
| Political groups/individual candidates | – | – | 49,846 | 5.1 | – |