Mettmann I

Mettmann 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 103. It is located in western North Rhine-Westphalia, comprising the southern part of the district of Mettmann.^[1]

103 Mettmann I
Electoral district for the Bundestag
Mettmann I in 2025
State	North Rhine-Westphalia
Population	268,900 (2019)
Electorate	203,030 (2021)
Major settlements	Langenfeld Hilden Erkrath
Area	183.8 km2
Current electoral district
Created	1949
Party	CDU
Member	Klaus Wiener
Elected	2021, 2025

Mettmann I was created for the inaugural 1949 federal election. Since 2021, it has been represented by Klaus Wiener of the Christian Democratic Union (CDU).^[2]

Geography

Mettmann I is located in western North Rhine-Westphalia. As of the 2021 federal election, it comprises the municipalities of Erkrath, Haan, Hilden, Langenfeld, Mettmann, and Monheim am Rhein from the district of Mettmann.^[1]

History

Mettmann I was created in 1949, then known as Düsseldorf-Mettmann. From 1965 through 1976, it was named Düsseldorf-Mettmann II. It acquired its current name in the 1980 election. In the 1949 election, it was North Rhine-Westphalia constituency 18 in the numbering system. From 1953 through 1961, it was number 77. From 1965 through 1980, it was number 73. From 1980 through 1998, it was number 72. From 2002 through 2009, it was number 105. In the 2013 through 2021 elections, it was number 104. From the 2025 election, it has been number 103.

Originally, the constituency was coterminous with the district of Düsseldorf-Mettmann. In the 1965 through 1976 elections, it comprised the southern parts of the district, specifically the municipalities of Erkrath, Haan, Mettmann, Hilden, and Wülfrath. It acquired its current borders in the 1980 election.

Election	No.	Name	Borders
1949	18	Düsseldorf-Mettmann	Düsseldorf-Mettmann district
1953	77
1957
1961
1965	73	Düsseldorf-Mettmann I	Düsseldorf-Mettmann district (only Erkrath, Haan, Mettmann, Hilden, and Wülfrath municipalities)
1969
1972
1976
1980	72	Mettmann I	Mettmann district (only Erkrath, Haan, Hilden, Langenfeld, Mettmann, and Monheim am Rhein municipalities)
1983
1987
1990
1994
1998
2002	105
2005
2009
2013	104
2017
2021
2025	103

Members

The constituency was first represented by Gerhard Schröder of the Christian Democratic Union (CDU) from 1949 to 1969. He was succeeded by Georg Neemann in 1969, who served a single term before the Social Democratic Party (SPD)'s candidate Uwe Holtz was elected in 1972. He served until 1983, when Joseph-Theodor Blank of the CDU won it. Lilo Friedrich was elected in 1998 and 2002, before Michaela Noll of the CDU became representative in 2005. She was re-elected in 2009, 2013, and 2017. She was succeeded by Klaus Wiener in 2021. He was re-elected in 2025.

Election		Member	Party	%
	1949	Gerhard Schröder	CDU	34.1
	1953			52.0
	1957			54.2
	1961			44.9
	1965			48.6
	1969	Georg Neemann	CDU	47.9
	1972	Uwe Holtz	SPD	53.5
	1976			48.5
	1980			49.4
	1983	Joseph-Theodor Blank	CDU	49.1
	1987			46.0
	1990			44.1
	1994			45.8
	1998	Lilo Friedrich	SPD	46.0
	2002			42.8
	2005	Michaela Noll	CDU	47.3
	2009			44.9
	2013			49.5
	2017			44.6
	2021	Klaus Wiener	CDU	30.0
	2025			36.6

Election results

2025 election

Federal election (2025): Mettmann 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	%	±%
	CDU	Y Klaus Wiener		60,813	36.6	6.6	53,516	32.1	4.7
	SPD	Pat Kreß		37,459	22.5	2.4	31,482	18.9	7.9
	AfD	Martin Renner		26,187	15.8	9.0	25,921	15.5	8.8
	Greens	Dirk Miemeyer		20,705	12.5	10.4	21,284	12.8	3.3
	Left	Klaus Wockenforth		10,713	6.4	3.8	11,506	6.9	3.8
	FDP	Yannick Hope		7,482	4.5	4.9	9,419	5.7	7.7
	BSW						6,983	4.2
	Volt	Michael Gerzmann		2,863	1.7		1,401	0.8	0.5
	Tierschutzpartei						2,259	1.4	0.1
	PARTEI						825	0.5	0.4
	FW					1.2	680	0.4	0.3
	PdF						350	0.2
	dieBasis					1.2	340	0.2	0.8
	Team Todenhöfer						338	0.2	0.6
	BD						188	0.1
	Values						117	0.1
	MERA25						57	0.0
	MLPD						38	0.0	0.0
	Pirates								0.4
	Gesundheitsforschung								0.1
	ÖDP								0.1
	Bündnis C								0.1
	Humanists								0.1
	SGP							0.0	0.0
Informal votes				1,365			883
Total valid votes				166,222			166,704
Turnout				167,587	83.4	4.9
	CDU hold		Majority	23,354	14.1

2021 election

Federal election (2021): Mettmann 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	%	±%
	CDU	Klaus Wiener		47,326	30.0	14.7	43,354	27.4	6.6
	SPD	Christian Steinacker		39,326	24.9	0.8	42,385	26.8	3.8
	Greens	Roland Schüren		36,095	22.9	15.9	25,430	16.1	8.7
	FDP	Nicole Burda		14,873	9.4	1.1	21,083	13.3	2.9
	AfD	Martin Renner		10,704	6.8	2.1	10,658	6.7	2.7
	Left	Lutz Gallasch		4,252	2.7	2.8	4,956	3.1	3.3
	Tierschutzpartei						2,260	1.4	0.6
	dieBasis	Marc Gutknecht		1,845	1.2		1,632	1.0
	PARTEI						1,474	0.9	0.3
	Team Todenhöfer						1,321	0.8
	FW	Mathias Huning		1,818	1.2		1,117	0.7	0.5
	Independent	Thorsten Klimczak		896	0.6
	Independent	Bernd Herrmann		761	0.5
	Pirates						652	0.4	0.0
	Volt						571	0.4
	LIEBE						215	0.1
	Gesundheitsforschung						208	0.1	0.0
	LfK						195	0.1
	NPD						130	0.1	0.1
	V-Partei3						119	0.1	0.0
	ÖDP						104	0.1	0.0
	Bündnis C						98	0.1
	Humanists						94	0.1	0.0
	PdF						77	0.0
	du.						72	0.0
	LKR						46	0.0
	MLPD						22	0.0	0.0
	DKP						21	0.0	0.0
	SGP						14	0.0	0.0
Informal votes				1,561			1,149
Total valid votes				157,896			158,308
Turnout				159,457	78.5	0.4
	CDU hold		Majority	8,000	5.1	13.9

2017 election

Federal election (2017): Mettmann 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	%	±%
	CDU	Y Michaela Noll		70,762	44.6	4.9	54,126	34.0	9.0
	SPD	Jens Niklaus		40,819	25.7	8.9	36,596	23.0	5.2
	AfD	Martin Renner		14,106	8.9	5.8	15,053	9.5	4.4
	FDP	Martina Reuter		13,202	8.3	6.4	25,757	16.2	9.9
	Greens	Jörn Leunert		11,014	6.9	1.9	11,796	7.4	0.2
	Left	Dieter Karzig		8,647	5.5	1.7	10,216	6.4	1.3
	Tierschutzpartei						1,294	0.8
	PARTEI						1,071	0.7	0.4
	Pirates						707	0.4	1.7
	AD-DEMOKRATEN						571	0.4
	FW						344	0.2	0.0
	NPD						266	0.2	0.7
	V-Partei³						181	0.1
	DiB						178	0.1
	ÖDP						176	0.1	0.0
	DM						167	0.1
	Gesundheitsforschung						158	0.1
	Volksabstimmung						156	0.1	0.1
	BGE						147	0.1
	Die Humanisten						107	0.1
	MLPD						59	0.0	0.0
	DKP						22	0.0
	SGP						17	0.0	0.0
Informal votes				1,765			1,150
Total valid votes				158,550			159,165
Turnout				160,315	78.1	3.0
	CDU hold		Majority	29,943	18.9	4.0

2013 election

Federal election (2013): Mettmann 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	%	±%
	CDU	Y Michaela Noll		75,628	49.5	5.0	65,696	43.0	8.1
	SPD	Peer Steinbrück		52,832	34.6	0.8	43,173	28.2	3.6
	Greens	Ophelia-Johanna Nick		7,735	5.1	2.1	11,699	7.7	2.7
	Left	Rainer Köster		5,697	3.7	1.9	7,808	5.1	1.9
	AfD	Gottfried Helmut Ottweiler		4,683	3.1		7,764	5.1
	Pirates	Andreas Graaf		3,134	2.1		3,243	2.1	0.5
	FDP	Moritz Körner		2,964	1.9	5.9	9,660	6.3	11.8
	NPD						1,273	0.8	0.0
	PARTEI						457	0.3
	PRO						328	0.2
	FW						305	0.2
	REP						283	0.2	0.2
	Volksabstimmung						273	0.2	0.1
	ÖDP						229	0.1	0.1
	Nichtwahler						199	0.1
	BIG						148	0.1
	Party of Reason						101	0.1
	RRP						96	0.1	0.1
	Die Rechte						47	0.0
	BüSo						45	0.0	0.0
	PSG						30	0.0	0.0
	MLPD						26	0.0	0.0
Informal votes				1,800			1,590
Total valid votes				152,673			152,883
Turnout				154,473	75.1	1.4
	CDU hold		Majority	22,796	14.9	4.2

2009 election

Federal election (2009): Mettmann I[7]
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	%	±%
	CDU	Y Michaela Noll		66,300	44.5	2.8	52,053	34.9	2.8
	SPD	Peer Steinbrück		50,319	33.8	5.9	36,767	24.7	11.1
	FDP	Michael Ruppert		11,674	7.8	3.6	27,081	18.2	5.8
	Greens	Peter Knitsch		10,611	7.1	2.8	15,404	10.3	3.4
	Left	Bastian Immanuel Wefes		8,412	5.6	2.1	10,411	7.0	2.6
	Pirates						2,401	1.6
	NPD	Ralf-Peter Zecher		1,690	1.1	0.2	1,218	0.8	0.1
	Tierschutzpartei						960	0.6	0.2
	FAMILIE						785	0.5	0.1
	REP						628	0.4	0.1
	RENTNER						596	0.4
	RRP						257	0.2
	Volksabstimmung						164	0.1	0.0
	ÖDP						123	0.1
	Centre						84	0.1	0.0
	DVU						69	0.0
	BüSo						48	0.0	0.0
	MLPD						32	0.0	0.0
	PSG						21	0.0	0.0
Informal votes				1,709			1,613
Total valid votes				149,006			149,102
Turnout				150,715	73.7	6.6
	CDU hold		Majority	15,981	10.7	3.1

2005 election

Federal election (2005): Mettmann I[8]
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	%	±%
	CDU	Michaela Noll		77,187	47.3	5.1	61,598	37.7	0.3
	SPD	N Lilo Friedrich		64,699	39.7	3.1	58,511	35.8	3.5
	Greens	Peter Knitsch		7,034	4.3	1.4	11,398	7.0	1.6
	Free Democratic Party (Germany	Dirk Wedel		6,879	4.2	3.1	20,143	12.3	1.1
	Left	Peter Peters		5,753	3.5	2.6	7,178	4.4	3.3
	NPD	Marco Meiniger		1,520	0.9		1,183	0.7	0.4
	GRAUEN						945	0.6	0.3
	Tierschutzpartei						761	0.5	0.1
	Familie						667	0.4	0.2
	REP						545	0.3
	From Now on... Democracy Through Referendum						131	0.1
	BüSo						79	0.0
	MLPD						52	0.0
	PBC						211	0.1
	Centre						40	0.0
	Socialist Equality Party						49	0.0	0.0
Informal votes				2,105			1,686
Total valid votes				163,072			163,491
Turnout				165,177	80.3	2.2
	CDU gain from SPD		Majority	12,488	7.6