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Home >> State of Wyoming >> Sweetwater County  

Welcome to Sweetwater County ...

Time Zone: Sweetwater County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Green River is the Seat for Sweetwater County.

Sweetwater County is one of the original counties of Wyoming and was founded in 1867.

From the Census Estimates for 2019, <1> Sweetwater had a population of 42,343 people. This is a decrease of 2.83% since the last Census (which gave a population of 43,574 people in 2010).

At the time of the 2010 Census, Sweetwater represented 7.73% of the total population of Wyoming.

Below are some of the communities located in Sweetwater County:

  • Bairoil
    (92 miles [148.1 km] to the northeast)
    • Jump to our Gazetteer entry for Bairoil
    • Bairoil is located in Sweetwater County (WY)
    • Population from the 2020 Census: 97 people
    • Jump to TripAdvisor's Tourism page for Bairoil <2>
  • Granger
    (41 miles [66 km] to the west)
    • Jump to our Gazetteer entry for Granger
    • Granger is located in Sweetwater County (WY)
    • Population from the 2020 Census: 128 people
    • Jump to TripAdvisor's Tourism page for Granger <2>
  • Green River
    (17 miles [27.4 km] to the southwest)
  • Rock Springs
    (4 miles [6.4 km] to the southwest)
  • Superior
    (13 miles [20.9 km] to the northeast)
    • Jump to our Gazetteer entry for Superior
    • Superior is located in Sweetwater County (WY)
    • Population from the 2020 Census: 312 people
    • Jump to TripAdvisor's Tourism page for Superior <2>
  • Wamsutter
    (61 miles [98.2 km] to the east)

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
 

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This page was last modified/updated: 22 Mar 2025