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Sweetwater County, Wyoming Demographics 2026

Sweetwater County, Wyoming has a population of 41,542, the 4th most populous county in Wyoming. The median household income is $75,034 and the median home value is $251,400. The poverty rate is 12.9%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Sweetwater County Quick Facts

Population 41,542
Median Household Income $75,034
Median Home Value $251,400
Poverty Rate 12.9%
Unemployment Rate 5.6%
Median Age 37.9 years
Homeownership Rate 74.6%
Affordability Ratio 3.4x
Bachelor's Degree+ 20.9%
High School Graduation 92.8%
Cities/Places 17
Population 41,542 4th of 23
Median Income $75,034 1% lower than state
Poverty Rate 12.9%
Unemployment 5.6%

How Sweetwater County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population41,78641,542-0.6%
Median household income$76,464$75,034-1.9%
Median home value$242,900$251,400+3.5%

Economy & Housing

Household Income Distribution

Under $25K 14.3%
$25K-$50K 18.2%
$50K-$100K 30.7%
$100K+ 36.8%
Detailed income brackets
Under $10K
6.0%
$10K-$15K
2.6%
$15K-$20K
2.1%
$20K-$25K
3.6%
$25K-$30K
4.3%
$30K-$35K
4.9%
$35K-$40K
3.3%
$40K-$45K
3.3%
$45K-$50K
2.4%
$50K-$60K
6.1%
$60K-$75K
11.5%
$75K-$100K
13.2%
$100K-$125K
10.9%
$125K-$150K
7.6%
$150K-$200K
10.5%
$200K+
7.9%

Employment

5.6% Unemployment Rate State: 3.7%|National: 5.2%
66.7% Labor Force Participation

Housing Overview

Owner 74.6%
Renter 25.4%
Affordability Index Affordable
3.4x home value to income ratio
Median gross rent $911/mo 14.6% of median household income annually

People & Demographics

Diversity Index

38out of 100
Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 32 | National average: 61

Education

Cities & Places in Sweetwater County

CityPopulationMedian IncomePovertyHome Value
Rock Springs23,127$69,16816.1%$256,200
Green River11,581$84,7479.3%$263,400
North Rock Springs2,277$104,3509.0%$313,000
Reliance572N/A0.0%$28,700
Purple Sage489$55,43220.3%N/A
Eden472$89,6252.1%$146,900
James Town431$118,7500.0%N/A
Clearview Acres273$62,0547.0%N/A
Wamsutter269$57,29816.0%$98,700
Granger257$78,8895.1%$100,000
Washam187N/A4.8%N/A
Superior177$96,2504.0%N/A
Bairoil149$40,25036.2%$23,700
Farson68N/A0.0%N/A
Arrowhead Springs43N/A0.0%$430,600
Little America19N/A63.2%N/A
Point of Rocks9N/A0.0%N/A

Population Overview

Sweetwater County is located in Wyoming with a total population of 41,542. It is the 4th most populous county out of 23 in Wyoming. The county encompasses 17 Census-designated places.

Age Demographics

The median age in Sweetwater County is 37.9 years. This is 3% lower than the state median of 39.1 years.

Economy, Income & Housing

The median household income in Sweetwater County is $75,034. This is 1% lower than the state median of $76,176. It is also 7% lower than the national median of $80,734. The poverty rate stands at 12.9%. This is 22% higher than the state poverty rate of 10.5%. The unemployment rate is 5.6%. This is 51% higher than the state rate of 3.7%. The median home value is $251,400. Housing costs are 19% lower than the state median of $309,700. The home-value-to-income ratio is 3.4x. 74.6% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 71.8%.

Race & Ethnicity

The largest racial or ethnic group in Sweetwater County is White (non-Hispanic), making up 76.8% of the population. Hispanic or Latino residents account for 16.8%. The Black or African American population is significantly higher than the state average (1.3% vs 0.8%). The Hispanic or Latino population is significantly higher than the state average (16.8% vs 10.7%).

Education

20.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% lower than the state rate of 30.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.8%.

Data Sources & Methodology

All figures for Sweetwater County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Wyoming and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Sweetwater County, Wyoming?

Sweetwater County has a population of 41,542, making it the 4th most populous county in Wyoming.

What is the median income in Sweetwater County?

The median household income in Sweetwater County is $75,034 with a poverty rate of 12.9%.

How many cities are in Sweetwater County, Wyoming?

Sweetwater County contains 17 Census-designated places.