Wyoming's 20th State Senate district

Wyoming's 20th
State Senate district
Wyoming's 20th; State Senate district
	Wyoming's 20th State Senate district as of 2022
Senator
	Ed Cooper; R–Ten Sleep
Demographics	86% White; 9% Hispanic; 1% Native American; 3% Multiracial
Population (2022)	18,011

Wyoming's 20th State Senate district is one of 31 districts in the Wyoming Senate. The district encompasses Hot Springs and Washakie counties as well as parts of Big Horn, Fremont and Park counties.^[2] It is represented by Republican Senator Ed Cooper of Ten Sleep.^[2]^[3]

In 1992, the state of Wyoming switched from electing state legislators by county to a district-based system.^[4]

List of members representing the district

Representative	Party	Term	Note
John Rankine	Republican	1993	Elected in 1992.^[5] Resigned in 1993.^[6]
Gerald Geis	Republican	1995 – 2017	Appointed in 1993.^[7] Elected in 1994.^[8] Re-elected in 1996.^[9] Re-elected in 2000.^[10] Re-elected in 2004.^[11] Re-elected in 2008.^[12] Re-elected in 2012.^[13]
Wyatt Agar	Republican	2017 – 2021	Elected in 2016.^[14]
Ed Cooper	Republican	2021 – present	Elected in 2020.^[15] Re-elected in 2024.^[16]

Recent election results

2008

Senate district 20 general election^[12]
Party		Candidate	Votes	%
	Republican	Gerald Geis (incumbent)	7,057	98.67%
	Write-ins		95	1.32%
Total votes			7,152	100.0%
Invalid or blank votes			995
	Republican hold

2012

Senate district 20 general election^[13]
Party		Candidate	Votes	%
	Republican	Gerald Geis (incumbent)	7,592	98.57%
	Write-ins		110	1.42%
Total votes			7,702	100.0%
Invalid or blank votes			1,113
	Republican hold

2016

Senate district 20 general election^[14]
Party		Candidate	Votes	%
	Republican	Wyatt Agar	6,893	81.39%
	Democratic	Mary Jane Norskog	1,546	18.25%
	Write-ins		30	0.35%
Total votes			8,469	100.0%
Invalid or blank votes			325
	Republican hold

2020

Senate district 20 general election^[15]
Party		Candidate	Votes	%
	Republican	Ed Cooper	7,497	85.03%
	Democratic	Theresa Livingston	1,293	14.66%
	Write-ins		26	0.29%
Total votes			8,816	100.0%
Invalid or blank votes			275
	Republican hold

2024

Senate district 20 general election^[16]
Party		Candidate	Votes	%
	Republican	Ed Cooper (incumbent)	8,236	97.16%
	Write-ins		240	2.83%
Total votes			8,476	100.0%
Invalid or blank votes			1,119
	Republican hold

Historical district boundaries

Description	Apportionment Plan	Notes
Hot Springs County Washakie County Big Horn County (part)	1992 Apportionment Plan	^[5]^[17]
Hot Springs County Washakie County Big Horn County (part) Park County (part)	2002 Apportionment Plan	^[18]^[19]
Hot Springs County Washakie County Big Horn County (part) Fremont County (part) Park County (part)	2012 Apportionment Plan	^[20]^[21]

References

^ "State Senate District 20, WY". Wyoming Legislature. Retrieved November 14, 2024.
^ ^a ^b "Current Senate Districts". Wyoming Legislature. Retrieved November 14, 2024.
^ "Senate District 20: Senator Ed Cooper". Wyoming Legislature. Retrieved November 14, 2024.
^ "Wyoming Legislator Database". Wyoming Legislature. Retrieved November 14, 2024.
^ ^a ^b "Election Results: State Senate". Casper Star-Tribune. November 5, 1992. p. 13. Retrieved November 14, 2024 – via Newspapers.com.
^ "Rankine resigns Senate seat". Casper Star-Tribune. Casper, Wyoming. June 10, 1993. p. 11. Retrieved November 14, 2024 – via Newspapers.com.
^ "Karpan supports 'affordable' special legislative elections". Casper Star-Tribune. September 10, 1993. p. 1. Retrieved November 14, 2024 – via Newspapers.com.
^ "Election Results: State Legislature". Casper Star-Tribune. November 10, 1994. p. 13. Retrieved November 14, 2024 – via Newspapers.com.
^ "Legislative Candidates Abstracts" (PDF). Wyoming Secretary of State. 1996. p. 5. Retrieved November 14, 2024.
^ "Statewide Legislative Abstract -- General Election -- November 7, 2000" (PDF). Wyoming Secretary of State. 2000. p. 4. Retrieved November 14, 2024.
^ "Legislative Candidates' Abstract -- Official Wyoming General Election Results -- November 2, 2004" (PDF). Wyoming Secretary of State. 2004. p. 3. Retrieved November 14, 2024.
^ ^a ^b "Statewide Senate Districts Official Summary" (PDF). Wyoming Secretary of State. 2008. p. 5. Retrieved November 14, 2024.
^ ^a ^b "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2012. p. 10. Retrieved November 14, 2024.
^ ^a ^b "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2016. p. 5. Retrieved November 14, 2024.
^ ^a ^b "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2020. p. 5. Retrieved November 14, 2024.
^ ^a ^b "2024 General Election Senate Candidates Summary" (PDF). Wyoming Secretary of State. 2024. p. 11. Retrieved November 14, 2024.
^ "Map Archive". The American Redistricting Project. Retrieved November 19, 2024.
^ "HOUSE BILL NO. 0075" (PDF). March 1, 2002. Archived from the original (PDF) on October 13, 2002. Retrieved November 14, 2024.
^ "WYOMING REDISTRICTING 2011-2012" (PDF). Wyoming Legislature. Retrieved November 14, 2024.
^ "District: SD20" (PDF). Archived from the original (PDF) on March 27, 2021. Retrieved November 14, 2024.
^ "Districts and Precincts by Legislative Districts" (PDF). May 17, 2012. Retrieved November 14, 2024.

[1] "State Senate District 20, WY". Wyoming Legislature. Retrieved November 14, 2024.

[map-2] "Current Senate Districts". Wyoming Legislature. Retrieved November 14, 2024.

[3] "Senate District 20: Senator Ed Cooper". Wyoming Legislature. Retrieved November 14, 2024.

[4] "Wyoming Legislator Database". Wyoming Legislature. Retrieved November 14, 2024.

[election1992-5] "Election Results: State Senate". Casper Star-Tribune. November 5, 1992. p. 13. Retrieved November 14, 2024 – via Newspapers.com.

[6] "Rankine resigns Senate seat". Casper Star-Tribune. Casper, Wyoming. June 10, 1993. p. 11. Retrieved November 14, 2024 – via Newspapers.com.

[7] "Karpan supports 'affordable' special legislative elections". Casper Star-Tribune. September 10, 1993. p. 1. Retrieved November 14, 2024 – via Newspapers.com.

[8] "Election Results: State Legislature". Casper Star-Tribune. November 10, 1994. p. 13. Retrieved November 14, 2024 – via Newspapers.com.

[election1996-9] "Legislative Candidates Abstracts" (PDF). Wyoming Secretary of State. 1996. p. 5. Retrieved November 14, 2024.

[election2000-10] "Statewide Legislative Abstract -- General Election -- November 7, 2000" (PDF). Wyoming Secretary of State. 2000. p. 4. Retrieved November 14, 2024.

[election2004-11] "Legislative Candidates' Abstract -- Official Wyoming General Election Results -- November 2, 2004" (PDF). Wyoming Secretary of State. 2004. p. 3. Retrieved November 14, 2024.

[election2008-12] "Statewide Senate Districts Official Summary" (PDF). Wyoming Secretary of State. 2008. p. 5. Retrieved November 14, 2024.

[election2012-13] "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2012. p. 10. Retrieved November 14, 2024.

[election2016-14] "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2016. p. 5. Retrieved November 14, 2024.

[election2020-15] "Statewide Senate Candidates Official Summary" (PDF). Wyoming Secretary of State. 2020. p. 5. Retrieved November 14, 2024.

[election2024-16] "2024 General Election Senate Candidates Summary" (PDF). Wyoming Secretary of State. 2024. p. 11. Retrieved November 14, 2024.

[17] "Map Archive". The American Redistricting Project. Retrieved November 19, 2024.

[18] "HOUSE BILL NO. 0075" (PDF). March 1, 2002. Archived from the original (PDF) on October 13, 2002. Retrieved November 14, 2024.

[19] "WYOMING REDISTRICTING 2011-2012" (PDF). Wyoming Legislature. Retrieved November 14, 2024.

[20] "District: SD20" (PDF). Archived from the original (PDF) on March 27, 2021. Retrieved November 14, 2024.

[21] "Districts and Precincts by Legislative Districts" (PDF). May 17, 2012. Retrieved November 14, 2024.

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