Percentage of votes
| Specification | Votes 2014 | Votes 2009 | Diff. on 2009 in p.p. | ||
|---|---|---|---|---|---|
| Number | % | Number | % | ||
| Persons entitled to vote | 850,194 | – | 842,278 | – | – |
| Voters | 413,626 | 48.7 | 363,609 | 43.2 | +5.5 |
| Invalid | 3,664 | 0.9 | 2,915 | 0.8 | +0.1 |
| Valid | 409,962 | 99.1 | 360,694 | 99.2 | -0.1 |
| CDU | 138,479 | 33.8 | 118,898 | 33.0 | +0.8 |
| SPD | 140,049 | 34.2 | 105,438 | 29.2 | +4.9 |
| GRÜNE | 55,403 | 13.5 | 56,331 | 15.6 | -2.1 |
| FDP | 10,885 | 2.7 | 38,605 | 10.7 | -8.0 |
| DIE LINKE | 19,306 | 4.7 | 16,221 | 4.5 | +0.2 |
| Tierschutzpartei | 4,257 | 1.0 | 3,110 | 0.9 | +0.2 |
| PIRATEN | 5,228 | 1.3 | 3,336 | 0.9 | +0.4 |
| REP | 764 | 0.2 | 2,928 | 0.8 | -0.6 |
| FAMILIE | 1,592 | 0.4 | 1,704 | 0.5 | -0.1 |
| FREIE WÄHLER | 1,580 | 0.4 | 1,066 | 0.3 | +0.1 |
| PBC | 646 | 0.2 | 711 | 0.2 | ±0.0 |
| Volksabstimmung | 787 | 0.2 | 795 | 0.2 | ±0.0 |
| ÖDP | 794 | 0.2 | 560 | 0.2 | ±0.0 |
| AUF | 322 | 0.1 | 324 | 0.1 | ±0.0 |
| CM | 206 | 0.1 | 369 | 0.1 | -0.1 |
| DKP | 288 | 0.1 | 293 | 0.1 | ±0.0 |
| BP | 176 | 0.0 | 219 | 0.1 | ±0.0 |
| PSG | 80 | 0.0 | 93 | 0.0 | ±0.0 |
| BüSo | 84 | 0.0 | 99 | 0.0 | ±0.0 |
| AfD | 23,741 | 5.8 | – | – | – |
| PRO NRW | 191 | 0.0 | – | – | – |
| MLPD | 179 | 0.0 | – | – | – |
| NPD | 1,983 | 0.5 | – | – | – |
| Die PARTEI | 2,942 | 0.7 | – | – | – |
| Political groups/individual candidates | – | – | 9,594 | 2.7 | – |