Sweetwater County, Wyoming
Sweetwater County: County in Wyoming, United States
About
Sweetwater County is a county located in the U.S. state of Wyoming. As of the 2010 census, the population was 43,806 and a population density of 2 people per km². After 10 years in 2020 county had an estimated population of 42,673 inhabitants. Its county seat is Green River. The county was created 158 years ago in 1866.
Quick Facts about Sweetwater County
| Population : | 42,673 (2020) |
| Country : | United States of America |
| State : | Wyoming (United States) |
| Area : | 27172 km2 |
| Official name : | Sweetwater County |
| Water as percent of area : | 0.6% |
| Land as percent of area : | 99.4% |
| Named for : | Sweetwater River |
| Altitude : | 6,470 feet / 1972 meters |
| Capital : | Green River |
| Establishment : | January 01, 1867 |
| Time Zone : | America/Denver |
| Local time : | 02:00:42 (22nd February 2025) |
| Density : | 2 Pop. per km² as of 2020 |
| Population growth : | -2.66% (2010-2020) |
Geography
Sweetwater County is located at 41°39'34"N 108°52'46"W (41.6595000, -108.8794200). It has 8 neighbors: Summit County, Carbon County, Moffat County, Daggett County, Fremont County, Lincoln County, Sublette County and Uinta County.
Sweetwater County map
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The largest city of Sweetwater County is Rock Springs with a population of 22,943. Other cities include and Green River population 11,788. See all Sweetwater County cities & populated places.
Sweetwater County Populated Places
Cities, towns, neighborhoods & other populated places in Sweetwater County.
| City Name | Population | Title |
|---|---|---|
| Rock Springs | 22,943 | City in Sweetwater County, Wyoming, United States |
| Green River | 11,788 | River in Wyoming, Utah, and Colorado, in the United States, that is a tributary of the Colorado River |
| North Rock Springs | 2,207 | Census-designated place in Sweetwater County, Wyoming |
| Wamsutter | 467 | Town of the United States |
| Superior | 312 | Town of the United States |
| Granger | 128 | Town in Wyoming |
| Bairoil | 97 | Town of the United States |
- Official Website
Official website of Sweetwater County
Sweetwater County has 8 neighbours.
- Summit County county in northern Utah, United States
- Carbon County county in Wyoming, United States of America
- Moffat County county in Colorado, United States
- Daggett County county in nothereastern Utah, United States
- Fremont County county in western Wyoming, United States
- Lincoln County county in Wyoming, United States
- Sublette County county in western Wyoming, United States
- Uinta County county in Wyoming, United States
- Green River
Demographics
According to census records, the population of Sweetwater County decreased by 2.66% in 10 years.
| Year | Population | % Change | Method |
| 2000 | 37,613 | - | census |
| 2010 | 43,806 | 14.14% | census |
| 2011 | 43,986 | 0.41% | estimation process |
| 2012 | 45,002 | 2.26% | estimation process |
| 2013 | 45,157 | 0.34% | estimation process |
| 2014 | 44,948 | -0.46% | estimation process |
| 2015 | 44,719 | -0.51% | estimation process |
| 2016 | 44,222 | -1.12% | estimation process |
| 2017 | 43,464 | -1.74% | estimation process |
| 2018 | 42,858 | -1.41% | estimation process |
| 2019 | 42,343 | -1.22% | estimation process |
| 2020 | 42,673 | 0.77% | estimation process |
Wyoming Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Laramie County | 100,595 | County in the southeastern corner of Wyoming, United States |
| Natrona County | 80,815 | County in Wyoming, United States |
| Cheyenne | 64,742 | The most populous city in Laramie County, Wyoming. |
| Casper | 58,498 | The most populous city in Natrona County, Wyoming. |
| Campbell County | 46,676 | County in northeastern Wyoming, United States |
| Fremont County | 39,317 | County in western Wyoming, United States |
| Albany County | 38,950 | County in Wyoming, United States |
| Laramie | 32,661 | City in and county seat of Albany County, Wyoming, United States |
| Gillette | 32,220 | City in Campbell County, Wyoming, United States |
| Sheridan County | 30,863 | County in Wyoming, United States |
| Park County | 29,331 | County in Colorado, United States |
| Teton County | 23,497 | County in Wyoming, United States |
| Rock Springs | 22,943 | City in Sweetwater County, Wyoming, United States |
| Lincoln County | 20,253 | County in Wyoming, United States |
| Uinta County | 20,215 | County in Wyoming, United States |
| Sheridan | 18,095 | City in Wyoming, United States |
