Siedenburg, Flecken: results of the 2026 local elections and the 2025 federal election
In the local elections on 13 September 2026, Haakon Trocha became the largest group on the council of Siedenburg, Flecken with 14.2%.
In the federal election on 23 February 2025, CDU led in Siedenburg, Flecken with 34.6% of the second votes, SPD took 22.6%.
- MayorDetlef Metzlaff, since 2016 · Wikidata
- Turnout59.6% · Diepholz (Wkr. 033) 83.5% · Germany 82.5%
- Voters546 of 916 eligible voters
- Stands out against Lower SaxonyCDU +6.5 · Grüne −4.9 · Linke +0.9
- First votes: leadingCDU candidate
- Constituency33 Diepholz – Nienburg I
Postal votes were counted at collective-municipality level; polling-station votes only shown here.
2026 local elections in Siedenburg, Flecken
On 13 September 2026, Lower Saxony elected its councils, district councils, mayors and district administrators. Below, the preliminary result for Siedenburg, Flecken, as of 21.09.2026 10:37. All districts and municipalities: Lower Saxony local elections 2026.
- Largest group: municipal councilHaakon Trocha 14.2%
- Samtgemeinde councilCDU 48.6% in the Samtgemeinde Siedenburg
- District council, votes from the Samtgemeinde SiedenburgCDU 44.4%
- Turnout69.3% · district council election 71.1%
- Haakon Trocha14.2%
- Helge Kühling11.6%
- Thomas Bückmann11.4%
- Stefan Stuwe8.2%
- Stefan Treichel7.6%
- Stefanie Focke7.0%
- Volker Sudmann6.9%
- Olaf Kersel6.8%
- Lenn Conner Gerdes6.6%
- Christian Bergholz6.3%
- Carsten Küfe4.4%
- Ralf Landwehr3.3%
- Roland Küker3.3%
- Rainer Sauer2.3%
Turnout 69.3% · 957 eligible voters · 11 seats · Official final result · 2 of 2 results
Source: Samtgemeinde Siedenburg, Local elections 2026, official results presentation (votemanager) (file), final result, retrieved 24 Sep 2026, official work, § 5 UrhG. Electoral authority status: 21.09.2026 10:37. Electoral authority's result portal: https://votemanager.kdo.de/20260913/032515407/praesentation/ Compiled by wahlergebnisse.io.
Samtgemeinde Siedenburg
The municipality belongs to the joint municipality (Samtgemeinde) Siedenburg, whose council and mayor were also elected.
Samtgemeinde council: 14 seats
- CDU48.6% · 7 seats
- FWG25.5% · 4 seats
- AfD8.8% · 1 seat
- SPD8.3% · 1 seat
- Die Linke6.7% · 1 seat
- Bergholz, Einzelwahlvorschlag Bergholz2.1%
Turnout 71.2% · 3,590 eligible voters · 14 seats · Official final result · 10 of 10 results
Samtgemeinde mayor election
- Grimmig, Einzelwahlvorschlag65.1%
- Ahrens, Einzelwahlvorschlag20.1%
- Schumann, Einzelwahlvorschlag9.3%
- Rehders, Die Linke5.5%
Turnout 71.2% · 3,590 eligible voters · Official final result · 10 of 10 results
Source: Samtgemeinde Siedenburg, Local elections 2026, official results presentation (votemanager) (file), final result, retrieved 24 Sep 2026, official work, § 5 UrhG. Electoral authority status: 21.09.2026 10:08. Compiled by wahlergebnisse.io.
District council and district administrator: the votes from the Samtgemeinde Siedenburg
How voters in the Samtgemeinde voted in the district election. The overall result for Diepholz is on the district page.
District council election
- CDU44.4%
- SPD16.0%
- AfD12.3%
- GRÜNE10.7%
- Sulingen!5.2%
- Die Linke4.3%
- FDP3.6%
- UWG3.5%
Turnout 71.1% · 3,599 eligible voters · 10 of 10 results
Second votes in Siedenburg, Flecken
Shares in percent of valid second votes, deviation from the state result in points. Others: all parties not listed individually.
- CDU34.6%+6.5
- SPD22.6%-0.4
- AfD17.3%-0.5
- Linke9.0%+0.9
- Grüne6.6%-4.9
- FDP4.2%+0.1
- BSW3.1%-0.7
- Freie Wähler0.4%-0.4
- Volt0.2%-0.4
- Others2.0%-0.2
Change compared with the result in Lower Saxony.
| Party | Votes | Share | District | Lower Saxony | Germany |
|---|---|---|---|---|---|
| CDU | 188 | 34.6% | 30.4% | 28.1% (+6.5) | 22.6% (+12.0) |
| SPD | 123 | 22.6% | 22.9% | 23.0% (-0.4) | 16.4% (+6.2) |
| AfD | 94 | 17.3% | 17.3% | 17.8% (-0.5) | 20.8% (-3.5) |
| Linke | 49 | 9.0% | 6.9% | 8.1% (+0.9) | 8.8% (+0.2) |
| Grüne | 36 | 6.6% | 10.4% | 11.5% (-4.9) | 11.6% (-5.0) |
| FDP | 23 | 4.2% | 4.7% | 4.1% (+0.1) | 4.3% (-0.1) |
| BSW | 17 | 3.1% | 3.7% | 3.8% (-0.7) | 5.0% (-1.9) |
| Freie Wähler | 2 | 0.4% | 1.0% | 0.8% (-0.4) | – |
| Volt | 1 | 0.2% | 0.5% | 0.6% (-0.4) | – |
| Others | 11 | 2.0% | 2.1% | 2.2% (-0.2) | 10.6% (-8.6) |
Source: Federal Returning Officer, 2025 federal election, results by polling district (file), final result, retrieved 7 Sep 2026, Data licence Germany, attribution 2.0. Municipal results are the sum of a municipality's polling districts including the postal-vote districts assigned to it. State and federal results: Federal Returning Officer, kerg2.csv, official final result. Compiled by wahlergebnisse.io.
Samtgemeinde Siedenburg: overall result including postal votes
Postal votes in Samtgemeinde Siedenburg are counted jointly for all 5 member municipalities and cannot officially be attributed to Siedenburg, Flecken. The figures above therefore show polling-station votes in Siedenburg, Flecken only. Below is the overall result of the association: polling-station votes of all members plus 789 postal voters, which is 27.3% of all votes.
- Turnout in the association84.7%
- Voters2,892 of 3,413 eligible voters
- Postal vote share27.3% · 789
- Member municipalities5
- CDU37.7%+3.1
- SPD22.4%-0.2
- AfD13.9%-3.4
- Grüne8.3%+1.7
- Linke6.8%-2.2
- FDP4.8%+0.6
- BSW2.5%-0.6
- Freie Wähler1.5%+1.1
- Volt0.3%+0.1
- Others1.8%-0.2
Change compared with polling-station votes in Siedenburg, Flecken.
| Party | Polling station Siedenburg, Flecken | Postal vote, association | Samtgemeinde Siedenburg total | Share |
|---|---|---|---|---|
| CDU | 188 (34.6%) | 317 (40.3%) | 1,086 | 37.7% |
| SPD | 123 (22.6%) | 192 (24.4%) | 645 | 22.4% |
| AfD | 94 (17.3%) | 72 (9.2%) | 399 | 13.9% |
| Grüne | 36 (6.6%) | 69 (8.8%) | 239 | 8.3% |
| Linke | 49 (9.0%) | 38 (4.8%) | 195 | 6.8% |
| FDP | 23 (4.2%) | 48 (6.1%) | 139 | 4.8% |
| BSW | 17 (3.1%) | 18 (2.3%) | 72 | 2.5% |
| Freie Wähler | 2 (0.4%) | 14 (1.8%) | 43 | 1.5% |
| Others | 11 (2.0%) | 13 (1.7%) | 52 | 1.8% |
Member municipalities (polling-station votes only)
- BorstelCDU 39.6%
- MaasenCDU 38.2%
- MellinghausenCDU 35.7%
- Siedenburg, FleckenCDU 34.6%
- StaffhorstCDU 35.4%
Source: Federal Returning Officer, polling-district statistics; association total is our own calculation from polling-station and postal-vote districts.
Siedenburg, Flecken: location in the Diepholz district
All municipalities of the district, coloured by the strongest party of the second votes. Siedenburg, Flecken highlighted, the other members of Samtgemeinde Siedenburg shown half-transparent. Tap to open a neighbouring municipality.