# 1928 Prussian state election

State elections were held in the Free State of Prussia on 20 May 1928 to elect all 450 members of the Landtag of Prussia. The governing coalition of the Social Democratic Party, Centre Party, and German Democratic Party retained its majority. The SPD recorded its best result since 1919 while the opposition German National People's Party suffered significant losses. The Centre Party, German People's Party, and DDP took modest losses; the Communist Party and Economic Party made modest gains.

## Results

| | Social Democratic Party (SPD) | 5,464,767 | 29.00 | +4.11 | 137 | +23 |
| | German National People's Party (DNVP) | 3,274,897 | 17.38 | –6.32 | 82 | –27 |
| | Centre Party (Zentrum) | 2,737,859 | 14.53 | –3.04 | 68 | –13 |
| | Communist Party of Germany (KPD) | 2,237,160 | 11.87 | +2.25 | 56 | +12 |
| | German People's Party (DVP) | 1,602,070 | 8.50 | –1.28 | 40 | –5 |
| | Reich Party of the German Middle Class (WP) Reich Party of the German Middle Class (WP) Pastor Greber Party | 850,391 840,661 9,730 | 4.51 4.46 0.05 | +2.04 +2.06 New | 21 21 0 | +10 +10 New |
| | German Democratic Party (DDP) German Democratic Party (DDP) People's Justice Party (Reich Party for Civil Rights and Deflation) | 839,530 829,859 9,671 | 4.46 4.40 0.05 | –1.44 –1.50 New | 21 21 0 | –6 –6 New |
| | Christian-National Peasants' and Farmers' Party (CNBL) Christian-National Peasants' and Farmers' Party (CNBL) German-Hanoverian Party (DHP) | 463,929 276,788 187,141 | 2.46 1.47 0.99 | +1.05 New –0.42 | 12 8 4 | +6 New –2 |
| | National Socialist German Workers Party (NSDAP) | 346,771 | 1.84 | –0.63 | 6 | –5 |
| | People's Justice Party (VRP) | 235,750 | 1.25 | New | 2 | New |
| | Völkisch National Bloc (VNB) | 205,789 | 1.09 | New | 2 | New |
| | Centre Party of Lower Saxony | 132,424 | 0.70 | New | 3 | New |
| | German Farmers' Party (DBP) | 88,534 | 0.47 | New | 0 | New |
| | National Minorities of Germany (NMD) Poland Party Schleswiger Association Lithuanian People's Party Wendish People's Party Masurian People's Party "Friesland" | 75,717 71,757 2,466 432 382 369 311 | 0.40 0.38 0.01 0.00 0.00 0.00 0.00 | –0.08 –0.06 –0.02 New 0.00 0.00 New | 0 0 0 0 0 0 0 | –2 –2 0 New 0 0 New |
| | Christian Social Reichs Party | 72,734 | 0.39 | New | 0 | New |
| | Left Communists | 55,509 | 0.29 | New | 0 | New |
| | German Social Party | 38,633 | 0.21 | New | 0 | New |
| | People's Bloc of Inflation Victims People's Bloc of Inflation Victims German Revaluation and Reconstruction Party (Cultural and Justice State Party etc.) | 24,218 22,812 1,406 | 0.13 0.12 0.01 | –0.09 New –0.21 | 0 0 0 | 0 New 0 |
| | Old Social Democratic Party of Germany (ASPD) | 18,852 | 0.10 | New | 0 | New |
| | Protestant National Community | 15,978 | 0.08 | New | 0 | New |
| | Independent Social Democratic Party (USPD) | 12,129 | 0.06 | –0.31 | 0 | 0 |
| | German Home and Landowners' Party | 11,600 | 0.06 | New | 0 | New |
| | Protestant People's Service | 10,290 | 0.05 | New | 0 | New |
| | Reichs Party for Craft, Commerce and Trade | 6,173 | 0.03 | New | 0 | New |
| | Non-Political List of War Victims etc. | 5,960 | 0.03 | New | 0 | New |
| | German Reichs Bloc of the Injured | 5,797 | 0.03 | New | 0 | New |
| | Christian National Middle-Class Party | 4,793 | 0.03 | New | 0 | New |
| | Party for Justice and Tenant Protection | 2,375 | 0.01 | New | 0 | New |
| | Revaluation and Reconstruction Party | 1,022 | 0.01 | –0.06 | 0 | 0 |
| | People's Justice Party (Reich Party for Civil Rights and Deflation) | 872 | 0.00 | New | 0 | New |
| Invalid/blank votes | Invalid/blank votes | 370,531 | 1.93 | – | – | – |
| Total | Total | 18,842,523 | 100 | – | 450 | 0 |
| Registered voters/turnout | Registered voters/turnout | 25,152,711 | 76.39 | –2.19 | – | – |
| Gonschior.de |||||||
Popular Vote
SPD
29.00%
DNVP
17.38%
Zentrum
14.53%
KPD
11.87%
DVP
8.50%
WP
4.51%
DDP
4.46%
CNBL
2.46%
NSDAP
1.84%
VRP
1.25%
VNB
1.09%
ZNS
0.70%
Other
2.41% :
Landtag seats
SPD
30.44%
DNVP
18.22%
Zentrum
15.11%
KPD
12.44%
DVP
8.89%
WP
4.67%
DDP
4.67%
CNBL
1.78%
NSDAP
1.33%
DHP
0.89%
ZNS
0.67%
VRP
0.44%
VNB
0.44% :

### Results by constituency

| Constituency | SPD | DNVP | Z | KPD | DVP | WP | DDP | CNBL | NSDAP | Other |
| 1. East Prussia | 26.8 | 31.3 | 7.4 | 9.5 | 9.8 | 2.1 | 3.8 | – | 0.8 | 8.5 |
| 2. Berlin | 34.0 | 15.7 | 3.4 | 29.6 | 4.2 | 2.4 | 6.5 | – | 1.4 | 2.8 |
| 3. Potsdam II | 30.6 | 21.5 | 3.1 | 17.5 | 9.1 | 3.2 | 9.5 | – | 1.7 | 3.8 |
| 4. Potsdam I | 34.7 | 22.9 | 2.2 | 17.1 | 6.5 | 5.1 | 5.2 | 0.2 | 1.6 | 4.5 |
| 5. Frankfurt an der Oder | 33.1 | 29.4 | 6.1 | 6.0 | 8.4 | 3.9 | 4.4 | 2.3 | 1.0 | 5.4 |
| 6. Pomerania | 30.2 | 41.5 | 1.0 | 6.1 | 5.5 | 5.0 | 4.0 | 0.3 | 1.5 | 4.9 |
| 7. Breslau | 37.8 | 22.9 | 15.8 | 4.5 | 6.0 | 3.7 | 3.0 | 0.4 | 0.9 | 5.0 |
| 8. Liegnitz | 37.8 | 24.4 | 7.9 | 4.2 | 6.5 | 7.1 | 6.4 | 0.1 | 1.2 | 4.4 |
| 9. Oppeln | 12.5 | 16.9 | 39.9 | 12.7 | 2.7 | 1.3 | 1.6 | 1.1 | 1.0 | 10.3 |
| 10. Magdeburg | 43.0 | 16.8 | 1.8 | 7.2 | 12.7 | 5.1 | 5.3 | 0.3 | 1.6 | 6.2 |
| 11. Merseburg | 23.8 | 21.4 | 1.4 | 24.6 | 10.2 | 6.0 | 4.6 | 0.3 | 2.7 | 5.0 |
| 12. Erfurt | 28.8 | 15.8 | 12.9 | 11.2 | 11.3 | 7.7 | 4.1 | 0.8 | 3.5 | 3.9 |
| 13. Schleswig-Holstein | 35.2 | 22.8 | 1.1 | 8.0 | 13.9 | 5.5 | 5.6 | 0.3 | 4.0 | 3.6 |
| 14. Weser-Ems | 22.8 | 9.5 | 24.5 | 3.5 | 10.4 | 2.8 | 4.5 | 8.8 | 5.1 | 8.1 |
| 15. Hanover East | 32.7 | 10.5 | 1.3 | 5.8 | 10.5 | 4.0 | 3.6 | 25.4 | 2.6 | 3.6 |
| 16. Hanover South | 44.0 | 9.0 | 5.5 | 3.5 | 11.9 | 3.6 | 3.9 | 12.5 | 3.4 | 2.7 |
| 17. Westphalia North | 22.8 | 8.4 | 34.5 | 9.4 | 7.6 | 6.0 | 2.2 | 3.4 | 0.9 | 4.8 |
| 18. Westphalia South | 29.5 | 8.6 | 23.3 | 11.9 | 10.6 | 4.7 | 4.2 | 1.3 | 1.6 | 4.3 |
| 19. Hesse-Nassau | 32.4 | 10.0 | 15.1 | 8.1 | 9.9 | 4.2 | 5.7 | 7.2 | 3.6 | 3.8 |
| 20. Köln-Aachen | 18.5 | 7.3 | 42.0 | 10.4 | 8.4 | 4.4 | 3.2 | – | 1.1 | 4.7 |
| 21. Koblenz-Trier | 11.8 | 6.7 | 52.1 | 4.7 | 5.8 | 4.2 | 1.9 | 5.8 | 2.0 | 5.0 |
| 22. Düsseldorf East | 19.0 | 11.9 | 21.0 | 22.5 | 8.9 | 6.1 | 3.2 | – | 1.8 | 5.6 |
| 23. Düsseldorf West | 17.2 | 10.7 | 35.6 | 14.7 | 8.4 | 6.0 | 2.5 | 0.2 | 1.2 | 3.5 |