Wyoming Counties by Population (2024)

by Kristen Carney Kristen Carney

Updated: June 20, 2024

The most populated counties in Wyoming are Laramie County with 100,984, Natrona County at 79,941, Campbell County with 47,498, Sweetwater County at 41,249, and Fremont County with 39,815. 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 2023 Population Estimates Program.

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Rank County Population
1 Laramie County 100,984
2 Natrona County 79,941
3 Campbell County 47,498
4 Sweetwater County 41,249
5 Fremont County 39,815
6 Albany County 38,257
7 Sheridan County 32,519
8 Park County 30,735
9 Teton County 23,232
10 Lincoln County 20,880
11 Uinta County 20,745
12 Carbon County 14,334
13 Converse County 13,809
14 Goshen County 12,642
15 Big Horn County 12,018
16 Sublette County 8,969
17 Johnson County 8,759
18 Platte County 8,546
19 Washakie County 7,710
20 Crook County 7,592
21 Weston County 6,808
22 Hot Springs County 4,661
23 Niobrara County 2,354

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. U.S. Census Bureau, Population Division. Web. May 2024. http://www.census.gov/.

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