Wyoming Counties by Population

The most populated counties in Wyoming are Laramie County with 100,316, Natrona County at 79,506, Campbell County with 46,857, Sweetwater County at 42,079, and Fremont County with 39,402. You can get the most current Census population data for all 23 Wyoming counties, sorted from the most populous counties in Wyoming to the least, according to the 2022 American Community Survey.

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Rank County Population
1 Laramie County 100,316
2 Natrona County 79,506
3 Campbell County 46,857
4 Sweetwater County 42,079
5 Fremont County 39,402
6 Albany County 37,525
7 Sheridan County 31,176
8 Park County 29,878
9 Teton County 23,346
10 Uinta County 20,546
11 Lincoln County 19,794
12 Carbon County 14,609
13 Converse County 13,729
14 Goshen County 12,592
15 Big Horn County 11,690
16 Sublette County 8,801
17 Platte County 8,618
18 Johnson County 8,536
19 Washakie County 7,725
20 Crook County 7,258
21 Weston County 6,870
22 Hot Springs County 4,616
23 Niobrara County 2,460

United States Census Bureau. B01001 SEX BY AGE, 2022 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 7 December 2023. http://www.census.gov/.

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