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Hot Springs County
Hot Springs County
County
	Hot Springs County Courthouse
	Flag
	Location within the U.S. state of Wyoming
	Wyoming's location within the U.S.
	Coordinates: 43°43′N 108°26′W / 43.71°N 108.44°W
Country	United States
State	Wyoming
Founded	February 21, 1911 (established); 1913 (organized)
Named for	Hot springs in the area
Seat	Thermopolis
Largest town	Thermopolis
Area
• Total	2,006 sq mi (5,200 km2)
• Land	2,004 sq mi (5,190 km2)
• Water	2.3 sq mi (6 km2) 0.1%
Population (2020)
• Total	4,621
• Density	2.3/sq mi (0.89/km2)
Time zone	UTC−7 (Mountain)
• Summer (DST)	UTC−6 (MDT)
Congressional district	At-large
Website	www.hscounty.com

Hot Springs County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 4,696,^[1] making it the second-least populous county in Wyoming. Its county seat is Thermopolis.^[2] The county is named for the hot springs located in Hot Springs State Park.

History

Hot Springs County was created on February 21, 1911, with areas annexed from Big Horn, Fremont, and Park counties. It was organized in 1913.^[3]

Hot Springs County was named for the hot springs located in the county seat of Thermopolis.^[4]

In the 2008 United States presidential election, Hot Springs County was the only county in the entire Mountain West outside of Arizona where John McCain beat George W. Bush's percentage of the county vote from the 2004 election.^[5]

Geography

According to the US Census Bureau, the county has a total area of 2,006 square miles (5,200 km²), of which 2,004 square miles (5,190 km²) is land and 2.3 square miles (6.0 km²) (0.1%) is water, which gives it nearly twice the land area of Rhode Island and a slightly larger land area than Delaware.^[6] It is the smallest county in Wyoming by area and the largest county in the US that is a state's smallest county.

Hot Springs County includes the southern portion of Wyoming's Big Horn Basin, and is surrounded by mountains. Most of the Wind River Canyon, with the Owl Creek Mountains on the west and Bridger Mountains on the east is in Hot Springs County, while the Bighorn Mountains ring the east portion on the county and the Absaroka Range is to the west. A small portion of the Shoshone National Forest is in the western part of the county.

The Wind River Indian Reservation extends into southern Hot Springs County.

Adjacent counties

Washakie County – northeast
Fremont County – south and southwest
Park County – northwest and north

National protected area

Shoshone National Forest (part)

Demographics

Historical population
Census	Pop.	Note	%±
1920	5,164		—
1930	5,476		6.0%
1940	4,607		−15.9%
1950	5,250		14.0%
1960	6,365		21.2%
1970	4,952		−22.2%
1980	5,710		15.3%
1990	4,809		−15.8%
2000	4,882		1.5%
2010	4,812		−1.4%
2020	4,621		−4.0%
2023 (est.)	4,661	^[7]	0.9%
US Decennial Census^[8] 1870–2000^[9] 2010–2016^[1]

2000 census

As of the 2000 United States Census,^[10] there were 4,882 people, 2,108 households, and 1,353 families in the county. The population density was 2 people per square mile (0.77 people/km²). There were 2,536 housing units at an average density of 1.3 units per square mile (0.50 units/km²). The racial makeup of the county was 95.96% White, 0.35% Black or African American, 1.52% Native American, 0.25% Asian, 0.63% from other races, and 1.29% from two or more races. 2.38% of the population were Hispanic or Latino of any race. 23.3% were of German, 17.0% English, 12.2% Irish, 8.2% American and 6.0% Norwegian ancestry.

There were 2,108 households, out of which 25.50% had children under the age of 18 living with them, 54.30% were married couples living together, 7.40% had a female householder with no husband present, and 35.80% were non-families. 31.70% of all households were made up of individuals, and 14.80% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.82.

The county population contained 22.00% under the age of 18, 5.90% from 18 to 24, 23.30% from 25 to 44, 28.70% from 45 to 64, and 20.00% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 92.70 males. For every 100 females age 18 and over, there were 89.80 males.

The median income for a household in the county was $29,888, and the median income for a family was $39,364. Males had a median income of $27,030 versus $18,667 for females. The per capita income for the county was $16,858. About 8.60% of families and 10.60% of the population were below the poverty line, including 12.10% of those under age 18 and 7.90% of those age 65 or over.

2010 census

As of the 2010 United States Census, there were 4,812 people, 2,185 households, and 1,362 families in the county.^[11] The population density was 2.4 people per square mile (0.93 people/km²). There were 2,582 housing units at an average density of 1.3 units per square mile (0.50 units/km²).^[12] The racial makeup of the county was 95.8% white, 1.5% American Indian, 0.4% Asian, 0.2% black or African American, 0.1% Pacific islander, 0.5% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 2.2% of the population.^[11] In terms of ancestry, 30.1% were German, 15.3% were Irish, 15.1% were English, 8.4% were Scotch-Irish, and 8.3% were American.^[13]

Of the 2,185 households, 23.5% had children under the age of 18 living with them, 50.5% were married couples living together, 8.3% had a female householder with no husband present, 37.7% were non-families, and 32.6% of all households were made up of individuals. The average household size was 2.16 and the average family size was 2.70. The median age was 48.6 years.^[11]

The median income for a household in the county was $42,469 and the median income for a family was $54,709. Males had a median income of $41,186 versus $26,990 for females. The per capita income for the county was $25,269. About 6.8% of families and 9.1% of the population were below the poverty line, including 12.2% of those under age 18 and 5.7% of those age 65 or over.^[14]

Communities

Towns

Census-designated places

Unincorporated communities

Ghost Towns

Gebo

Government and infrastructure

The Wyoming Department of Health Wyoming Pioneer Home, a nursing home for elderly people, is located in Thermopolis.^[16]^[17] The facility was operated by the Wyoming Board of Charities and Reform until that agency was dissolved as a result of a state constitutional amendment passed in November 1990.^[18]

Hot Springs County voters have been reliably Republican for many decades. In only one national election since 1948 did the county select the Democratic Party candidate (as of 2024).

United States presidential election results for Hot Springs County, Wyoming^[19]
Year	Republican		Democratic		Third party(ies)
Year	No.	%	No.	%	No.	%
2024	2,082	79.47%	488	18.63%	50	1.91%
2020	1,999	77.57%	482	18.70%	96	3.73%
2016	1,939	74.98%	400	15.47%	247	9.55%
2012	1,895	75.35%	523	20.80%	97	3.86%
2008	1,834	72.03%	619	24.31%	93	3.65%
2004	1,812	73.06%	623	25.12%	45	1.81%
2000	1,733	73.68%	544	23.13%	75	3.19%
1996	1,348	55.34%	779	31.98%	309	12.68%
1992	978	40.77%	740	30.85%	681	28.39%
1988	1,490	64.11%	800	34.42%	34	1.46%
1984	1,943	73.43%	672	25.40%	31	1.17%
1980	1,602	62.70%	745	29.16%	208	8.14%
1976	1,413	59.39%	958	40.27%	8	0.34%
1972	1,678	70.89%	689	29.11%	0	0.00%
1968	1,273	59.38%	705	32.88%	166	7.74%
1964	1,228	47.09%	1,380	52.91%	0	0.00%
1960	1,659	59.19%	1,144	40.81%	0	0.00%
1956	1,663	62.99%	977	37.01%	0	0.00%
1952	1,573	64.68%	856	35.20%	3	0.12%
1948	791	44.84%	928	52.61%	45	2.55%
1944	877	47.51%	969	52.49%	0	0.00%
1940	913	41.61%	1,266	57.70%	15	0.68%
1936	796	34.33%	1,419	61.19%	104	4.48%
1932	742	31.53%	1,466	62.30%	145	6.16%
1928	1,220	55.33%	940	42.63%	45	2.04%
1924	1,011	45.73%	231	10.45%	969	43.83%
1920	1,212	64.61%	529	28.20%	135	7.20%
1916	523	37.33%	760	54.25%	118	8.42%
1912	273	27.14%	343	34.10%	390	38.77%