Michigan's 20th Senate district

Michigan's 20th Senate district is one of 38 districts in the Michigan Senate. It has been represented by Republican Aric Nesbitt since 2023, succeeding Democrat Sean McCann.^[2][3]

Michigan's 20th State Senate district
Senator	Aric Nesbitt R–Porter Township
Demographics	78% White 11% Black 5% Hispanic 2% Asian 4% Other
Population (2018)	261,573^[1]

Geography

District 20 encompasses parts of Allegan, Berrien, Kent, and Van Buren counties.^[4]

2011 Apportionment Plan

District 20, as dictated by the 2011 Apportionment Plan, was exactly coterminous with Kalamazoo County, including the city of Kalamazoo and the surrounding communities of Portage, Comstock Northwest, Eastwood, Westwood, Vicksburg, Kalamazoo Township, Oshtemo Township, Texas Township, Comstock Township, and Cooper Township.^[5]

The district was located entirely within Michigan's 6th congressional district, and overlapped with the 60th, 61st, 63rd, and 66th districts of the Michigan House of Representatives.^[6]

Recent election results

2018

2018 Michigan Senate election, District 20^[7]

Party		Candidate	Votes	%
	Democratic	Sean McCann	60,528	53.1
	Republican	Margaret O'Brien (incumbent)	48,195	42.3
	Libertarian	Lorence Wenke	5,274	4.6
Total votes			113,997	100
	Democratic gain from Republican

2014

2014 Michigan Senate election, District 20^[7]

Primary election
Party		Candidate	Votes	%
	Republican	Margaret O'Brien	11,342	77.4
	Republican	Ron Zuiderveen	3,308	22.6
Total votes			14,650	100
General election
	Republican	Margaret O'Brien	36,630	45.5
	Democratic	Sean McCann	36,571	45.5
	Libertarian	Lorence Wenke	7,263	9.0
Total votes			80,464	100
	Republican hold

Federal and statewide results in District 20

Year	Office	Results^[8]
2020	President	Biden 58.3 – 39.6%
2018	Senate	Stabenow 57.3 – 40.3%
	Governor	Whitmer 58.4 – 38.5%
2016	President	Clinton 53.3 – 40.5%
2014	Senate	Peters 54.1 – 40.7%
	Governor	Snyder 51.0 – 46.2%
2012	President	Obama 56.2 – 42.9%
	Senate	Stabenow 57.1 – 39.4%

Historical district boundaries

Map	Description	Apportionment Plan	Notes
	Barry County (part) Assyria Township Baltimore Township Castleton Township Hastings Hastings Township Johnstown Township Maple Grove Township Woodland Township Branch County Calhoun County Eaton County (part) Bellevue Township Brookfield Township Carmel Township Kalamo Township Olivet Vermontville Township Walton Township Hillsdale County (part) Camden Township Reading Reading Township Woodbridge Township	1964 Apportionment Plan	^[9]
	Barry County (part) Assyria Township Baltimore Township Barry Township Carlton Township Hastings Township Hope Township Irving Township Johnstown Township Orangeville Township Rutland Township Woodland Township Yankee Springs Township Branch County Calhoun County (part) Excluding Lee Township Hillsdale County (part) Allen Township Litchfield Township Reading Reading Township Jackson County (part) Pulaski Township Kalamazoo County (part) Charleston Township St. Joseph County (part) Burr Oak Township Colon Township Fawn River Township Leonidas Township Sturgis	1972 Apportionment Plan	^[10]
	Calhoun County Eaton County Ingham County (part) Delhi Township	1982 Apportionment Plan	^[11]
	Berrien County Cass County St. Joseph County (part) Burr Oak Township Colon Township Constantine Township Fabius Township Fawn River Township Florence Township Flowerfield Township Leonidas Township Lockport Township Mottville Township Nottawa Township Sherman Township Sturgis Sturgis Township Three Rivers White Pigeon Township	1992 Apportionment Plan	^[12]
	Kalamazoo County Van Buren County (part) Antwerp Township Paw Paw Township	2001 Apportionment Plan	^[13]
	Kalamazoo County	2011 Apportionment Plan	^[14]

References

1. "State Senate District 20, MI". Census Reporter. Retrieved May 27, 2020.
2. "Legislator Details - Aric Nesbitt". Library of Michigan. Retrieved January 1, 2023.
3. "Legislator Details - Sean McCann". Library of Michigan. Retrieved January 1, 2023.
4. "Linden_Senate". Michigan. Retrieved November 21, 2022.
5. "Michigan's 38 Senate Districts - 2011 Apportionment Plan" (PDF). Michigan Senate. Retrieved May 27, 2020.
6. David Jarman. "How do counties, House districts, and legislative districts all overlap?". Daily Kos. Retrieved May 27, 2020.
7. "Michigan State Senate District 20". Ballotpedia. Retrieved May 27, 2020.
8. "Daily Kos Elections Statewide Results by LD". Daily Kos. Retrieved May 27, 2020.
9. "Michigan Manual 1965/1966". Michigan Legislature. 1965. p. 378. Retrieved November 21, 2022.
10. "Michigan Manual 1975/1976". Michigan Legislature. 1975. p. 457. Retrieved November 21, 2022.
11. "SENATORIAL DISTRICTS" (PDF). Michigan Legislature. 1989. Retrieved November 21, 2022.
12. "SENATORIAL DISTRICTS" (PDF). Michigan Legislature. 1997. Retrieved November 21, 2022.
13. "SENATORIAL DISTRICTS" (PDF). Michigan Legislature. 2001. Retrieved November 21, 2022.
14. (PDF). Archived from the original (PDF) on June 23, 2021. Retrieved November 21, 2022.