Data / Population / Sweetwater County

Population in Sweetwater County

Population in Sweetwater County was 41,267 in 2025, according to the U.S. Census Bureau. That is down 0.2% from 2024. That is the 4th highest of 23 counties in 2025.

2025, persons41,267
Change on 2024-0.2%
Rank4th of 23Counties in Wyoming ranked
Series high42,1942020
Series low41,2672025

Population in Sweetwater County, 2020 to 2025

CSVChart (SVG)

41.2K41.4K41.6K41.8K42K42.2K2020202120222023202420252020: 42,194 persons2021: 41,636 persons2022: 41,319 persons2023: 41,294 persons2024: 41,350 persons2025: 41,267 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202541,267
202441,350
202341,294
202241,319
202141,636
202042,194

Compared with Wyoming and United States

Place2025
Sweetwater County41,267
Wyoming588,753
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Sweetwater County?

Population in Sweetwater County was 41,267 in 2025, according to the U.S. Census Bureau. That is down 0.2% from 2024. That is the 4th highest of 23 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Sweetwater County?

42,194 in 2020, the highest value since 2020 in this series.

More statistics for Sweetwater County

All statistics for Sweetwater County