Duisburg I — Bundestag Constituency Results
Duisburg I was won by SPD at the 2021 Bundestag election, with 35.1% of the direct-mandate (Erststimme) vote, a margin of 15.4 points over CDU/CSU. This page covers every Bundestag election in Duisburg I from 1949 to 2021.
This page shows the winning party's share of the direct-mandate (Erststimme) vote, not the individual candidate's name -- the bulk source data used here reports results by party, not by candidate. See the sourcing note below.
Results by Election
| Election | Winning Party | Vote Share | Runner-up | Margin |
|---|---|---|---|---|
| 1949 | SPD | 36.7% | CDU/CSU (33.4%) | 3.4 pts |
| 1953 | CDU/CSU | 45.9% | SPD (37.2%) | 8.7 pts |
| 1957 | CDU/CSU | 51.2% | SPD (38.2%) | 13.0 pts |
| 1961 | SPD | 45.3% | CDU/CSU (41.4%) | 3.9 pts |
| 1965 | SPD | 52.0% | CDU/CSU (38.4%) | 13.6 pts |
| 1969 | SPD | 55.3% | CDU/CSU (35.7%) | 19.6 pts |
| 1972 | SPD | 61.6% | CDU/CSU (30.6%) | 31.0 pts |
| 1976 | SPD | 57.6% | CDU/CSU (34.3%) | 23.3 pts |
| 1980 | SPD | 64.0% | CDU/CSU (26.3%) | 37.6 pts |
| 1983 | SPD | 61.0% | CDU/CSU (31.5%) | 29.5 pts |
| 1987 | SPD | 62.8% | CDU/CSU (26.9%) | 35.9 pts |
| 1990 | SPD | 52.8% | CDU/CSU (30.9%) | 21.8 pts |
| 1994 | SPD | 54.6% | CDU/CSU (28.6%) | 26.0 pts |
| 1998 | SPD | 57.5% | CDU/CSU (23.9%) | 33.6 pts |
| 2002 | SPD | 53.5% | CDU/CSU (25.0%) | 28.5 pts |
| 2005 | SPD | 49.9% | CDU/CSU (24.4%) | 25.5 pts |
| 2009 | SPD | 36.2% | CDU/CSU (26.6%) | 9.7 pts |
| 2013 | SPD | 39.2% | CDU/CSU (30.0%) | 9.2 pts |
| 2017 | SPD | 31.7% | CDU/CSU (25.7%) | 6.0 pts |
| 2021 | SPD | 35.1% | CDU/CSU (19.7%) | 15.4 pts |
Winning Margin Over Time
Frequently Asked Questions
Which party won Duisburg I in the 2021 Bundestag election?
SPD won the direct mandate in Duisburg I in 2021 with 35.1% of the Erststimme vote, a margin of 15.4 points over CDU/CSU.
Which parties have won the direct mandate in Duisburg I since 1949?
Since 1949, the Duisburg I direct mandate has been won by: CDU/CSU, SPD.
What was the closest result on record in Duisburg I?
The closest result on record for Duisburg I was 1949, when SPD beat CDU/CSU by just 3.4 percentage points.