Unna I is an electoral constituency (German: Wahlkreis) represented in the Bundestag. It elects one member via first-past-the-post voting. Under the current constituency numbering system, it is designated as constituency 143. It is located in the Ruhr region of North Rhine-Westphalia, comprising the southern part of the district of Unna.[1]

143 Unna I
Electoral district
for the Bundestag
Unna I in 2025
StateNorth Rhine-Westphalia
Population252,900 (2019)
Electorate194,493 (2021)
Major settlementsUnna
Bergkamen
Schwerte
Area347.3 km2
Current electoral district
Created1965
PartySPD
MemberOliver Kaczmarek
Elected2009, 2013, 2017, 2021

Unna I was created for the 1965 federal election. Since 2009, it has been represented by Oliver Kaczmarek of the Social Democratic Party (SPD).[2]

Geography

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Unna I is located in the Ruhr region of North Rhine-Westphalia. As of the 2021 federal election, it comprises the municipalities of Bergkamen, Bönen, Fröndenberg, Holzwickede, Kamen, Schwerte, and Unna from the Unna district.[1]

History

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Unna I was created in 1965, then known as Unna. It acquired its current name in the 1980 election. In the 1965 through 1976 elections, it was constituency 123 in the numbering system. From 1980 through 1998, it was number 116. From 2002 through 2009, it was number 145. In the 2013 through 2021 elections, it was number 144. From the 2025 election, it has been number 143.

Originally, the constituency was coterminous with the Unna district. It acquired its current borders in the 1980 election.

Election No. Name Borders
1965 123 Unna
1969
1972
1976
1980 116 Unna I
1983
1987
1990
1994
1998
2002 145
2005
2009
2013 144
2017
2021
2025 143

Members

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The constituency has been held continuously by the Social Democratic Party (SPD) since its creation. It was first represented by Manfred Schulte from 1965 to 1987. Ulrich Böhme was representative from 1987 to 1998, followed by Rolf Stöckel until 2009. Oliver Kaczmarek was elected in 2009, and re-elected in 2013, 2017, and 2021.

Election Member Party %
1965 Manfred Schulte SPD 54.0
1969 57.4
1972 64.1
1976 59.5
1980 59.1
1983 55.0
1987 Ulrich Böhme SPD 55.4
1990 52.9
1994 55.5
1998 Rolf Stöckel SPD 59.3
2002 56.4
2005 54.8
2009 Oliver Kaczmarek SPD 42.6
2013 46.7
2017 38.8
2021 40.8

Election results

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2021 election

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Federal election (2021): Unna I[3]
Notes:

Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
Yellow background denotes an electorate win by a list member, or other incumbent.
A  Y or  N denotes status of any incumbent, win or lose respectively.

Party Candidate Votes % ±% Party votes % ±%
SPD  Y Oliver Kaczmarek 59,869 40.8   2.0 53,490 36.4   2.8
CDU Hubert Hüppe 36,810 25.1   6.7 31,995 21.8   5.4
Greens Michael Sacher[a] 20,340 13.9   7.4 20,022 13.6   6.8
AfD Ulrich Lehmann 11,736 8.0   1.1 11,428 7.8   2.0
FDP Suat Gülden 9,137 6.2   0.2 15,286 10.4   1.1
Left Andreas Meier 4,731 3.2   2.2 5,154 3.5   3.4
Tierschutzpartei   2,562 1.7   0.8
PARTEI   1,740 1.2   0.4
FW Thomas Cieszynski 1,967 1.3   0.7 1,088 0.7   0.4
dieBasis Artur Helios 1,451 1.0 1,151 0.8
Team Todenhöfer   823 0.6
Independent Nadine Peiler 535 0.4
Pirates   534 0.4   0.2
Volt   331 0.2
LIEBE 211 0.1
Gesundheitsforschung   193 0.1   0.0
LfK 175 0.1
NPD   144 0.1   0.2
Humanists   107 0.1   0.0
V-Partei3   102 0.1   0.0
Bündnis C   89 0.1
du.   76 0.1
ÖDP   72 0.0   0.0
MLPD Tobias Thylmann 185 0.1   0.0 64 0.0   0.0
PdF 45 0.0
DKP   24 0.0   0.0
LKR   19 0.0
SGP   11 0.0   0.0
Informal votes 1,322 1,147
Total valid votes 146,761 146,936
Turnout 148,083 76.1   0.1
SPD hold Majority 23,059 15.7   8.7

2017 election

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Federal election (2017): Unna I[4]
Notes:

Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
Yellow background denotes an electorate win by a list member, or other incumbent.
A  Y or  N denotes status of any incumbent, win or lose respectively.

Party Candidate Votes % ±% Party votes % ±%
SPD  Y Oliver Kaczmarek 58,019 38.8   7.8 50,205 33.6   7.4
CDU Hubert Hüppe 47,452 31.8   4.1 40,697 27.2   4.7
AfD Andreas Handt 13,558 9.1 14,689 9.8   6.1
FDP Heike Schaumann 9,635 6.4   4.7 17,196 11.5   7.5
Greens Michael Sacher 9,600 6.4   0.8 10,254 6.9   1.0
Left Ruth Tietz 8,048 5.4   0.1 10,313 6.9   0.7
Tierschutzpartei   1,376 0.9
PARTEI   1,146 0.8   0.4
Pirates Marcel Stephan Clostermann 1,565 1.0   1.4 804 0.5   1.6
AD-DEMOKRATEN 717 0.5
FW Thomas Cieszynski 941 0.6   0.3 561 0.4   0.2
NPD   463 0.3   0.7
Independent Jürgen Mollik 406 0.3
Gesundheitsforschung 166 0.1
Volksabstimmung 165 0.1   0.1
V-Partei³ 148 0.1
DM 143 0.1
DiB 122 0.1
ÖDP   115 0.1   0.0
BGE   97 0.1
MLPD Tobias Michael Karl Thylmann 161 0.1 88 0.1   0.0
Die Humanisten 76 0.1
SGP 20 0.0   0.0
DKP   19 0.0
Informal votes 1,446 1,251
Total valid votes 149,385 149,580
Turnout 150,831 76.2   2.2
SPD hold Majority 10,567 7.0   3.9

2013 election

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Federal election (2013): Unna I[5]
Notes:

Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
Yellow background denotes an electorate win by a list member, or other incumbent.
A  Y or  N denotes status of any incumbent, win or lose respectively.

Party Candidate Votes % ±% Party votes % ±%
SPD  Y Oliver Kaczmarek 68,287 46.7   4.1 60,019 40.9   3.3
CDU Hubert Hüppe 52,433 35.8   3.4 46,794 31.9   5.7
Greens Malte Spitz 8,242 5.6   3.0 11,567 7.9   1.4
Left Walter Wendt-Kleinberg 7,749 5.3   3.2 9,127 6.2   3.2
AfD   5,525 3.8
Pirates Marcel Clostermann 3,535 2.4 3,189 2.2   0.5
FDP Heike Schaumann 2,514 1.7   4.7 5,850 4.0   8.1
NPD 2,174 1.5   0.0 1,505 1.0   0.1
FW 1,342 0.9 882 0.6
PARTEI   557 0.4
PRO 362 0.2
Volksabstimmung 309 0.2   0.1
BIG 172 0.1
Nichtwahler 141 0.1
REP   139 0.1   0.1
ÖDP   125 0.1   0.0
Party of Reason 114 0.1
RRP 83 0.1   0.1
MLPD   55 0.0   0.0
BüSo 40 0.0   0.0
PSG 31 0.0   0.0
Die Rechte 29 0.0
Informal votes 1,843 1,504
Total valid votes 146,276 146,615
Turnout 148,119 74.0   0.7
SPD hold Majority 15,854 10.9   0.7

2009 election

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Federal election (2009): Unna I[6]
Notes:

Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
Yellow background denotes an electorate win by a list member, or other incumbent.
A  Y or  N denotes status of any incumbent, win or lose respectively.

Party Candidate Votes % ±% Party votes % ±%
SPD Oliver Kaczmarek 62,638 42.6   12.2 55,439 37.6   12.7
CDU Hubert Hüppe 47,702 32.4   0.8 38,646 26.2   0.4
Greens Friedrich Ostendorff 12,737 8.7   3.7 13,756 9.3   2.2
Left Walter Wendt-Kleinberg 12,451 8.5   4.1 13,842 9.4   4.0
FDP Gero Heinrich Bangerter 9,418 6.4   3.3 17,773 12.1   4.3
Pirates   2,439 1.7
NPD Holger Steinbiß 2,206 1.5   0.3 1,665 1.1   0.2
Tierschutzpartei   1,045 0.7   0.2
RENTNER 958 0.7
FAMILIE 727 0.5   0.1
REP   307 0.2   0.1
DVU   207 0.1
RRP 183 0.1
Volksabstimmung 144 0.1   0.0
ÖDP   88 0.1
Centre   52 0.0   0.0
MLPD   44 0.0   0.0
BüSo 24 0.0   0.0
PSG 18 0.0   0.1
Informal votes 1,757 1,552
Total valid votes 147,152 147,357
Turnout 148,909 73.4   6.8
SPD hold Majority 14,936 10.2   13.0

Notes

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  1. ^ Sacher entered the Bundestag on the Greens list after the resignation of Oliver Krischer in June 2022.

References

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  1. ^ a b "Constituency Unna I". Federal Returning Officer.
  2. ^ "Results for Unna I". Federal Returning Officer.
  3. ^ Results for Unna I
  4. ^ Results for Unna I
  5. ^ Results for Unna I
  6. ^ Results for Unna I