Rhein-Sieg-Kreis I — Bundestag Constituency Results
Rhein-Sieg-Kreis I was won by CDU/CSU at the 2021 Bundestag election, with 27.6% of the direct-mandate (Erststimme) vote, a margin of 1.0 points over SPD. This page covers every Bundestag election in Rhein-Sieg-Kreis 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 | CDU/CSU | 38.0% | SPD (22.3%) | 15.7 pts |
| 1953 | CDU/CSU | 57.7% | SPD (21.7%) | 36.0 pts |
| 1957 | CDU/CSU | 64.4% | SPD (22.0%) | 42.4 pts |
| 1961 | CDU/CSU | 58.1% | SPD (27.3%) | 30.8 pts |
| 1965 | CDU/CSU | 54.0% | SPD (33.8%) | 20.2 pts |
| 1969 | CDU/CSU | 48.0% | SPD (41.4%) | 6.6 pts |
| 1972 | CDU/CSU | 46.7% | SPD (43.4%) | 3.3 pts |
| 1976 | CDU/CSU | 51.4% | SPD (38.6%) | 12.8 pts |
| 1980 | CDU/CSU | 45.4% | SPD (40.0%) | 5.5 pts |
| 1983 | CDU/CSU | 51.3% | SPD (35.9%) | 15.4 pts |
| 1987 | CDU/CSU | 45.0% | SPD (35.8%) | 9.3 pts |
| 1990 | CDU/CSU | 44.0% | SPD (35.8%) | 8.3 pts |
| 1994 | CDU/CSU | 41.9% | SPD (37.7%) | 4.2 pts |
| 1998 | SPD | 40.8% | CDU/CSU (38.6%) | 2.1 pts |
| 2002 | CDU/CSU | 38.7% | SPD (37.7%) | 1.0 pts |
| 2005 | CDU/CSU | 37.6% | SPD (34.7%) | 2.9 pts |
| 2009 | CDU/CSU | 35.4% | SPD (23.0%) | 12.4 pts |
| 2013 | CDU/CSU | 43.5% | SPD (27.0%) | 16.5 pts |
| 2017 | CDU/CSU | 34.1% | SPD (22.4%) | 11.7 pts |
| 2021 | CDU/CSU | 27.6% | SPD (26.5%) | 1.0 pts |
Winning Margin Over Time
Frequently Asked Questions
Which party won Rhein-Sieg-Kreis I in the 2021 Bundestag election?
CDU/CSU won the direct mandate in Rhein-Sieg-Kreis I in 2021 with 27.6% of the Erststimme vote, a margin of 1.0 points over SPD.
Which parties have won the direct mandate in Rhein-Sieg-Kreis I since 1949?
Since 1949, the Rhein-Sieg-Kreis I direct mandate has been won by: CDU/CSU, SPD.
What was the closest result on record in Rhein-Sieg-Kreis I?
The closest result on record for Rhein-Sieg-Kreis I was 2002, when CDU/CSU beat SPD by just 1.0 percentage points.