Wyoming Population By County (2018)
Created on February 26, 2020.
Data Updated on April 4, 2021.

According to the US Census Bureau population estimates, there were 577,601 people living in Wyoming in 2018. Laramie County was the most populated county with 98,865 residents, followed by Natrona County with 79,175 residents, and Campbell County with 46,299 residents. Niobrara County with a population of 2,400 was the least populated county in Wyoming in 2018.

Use the map below to interactively explore the population of each county in Wyoming in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
Wyoming Population By County (2018)
Table of Wyoming Population By County (2018)
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County Population % of State Population
Albany 38,728 6.71%
Big Horn 11,877 2.06%
Campbell 46,299 8.02%
Carbon 14,879 2.58%
Converse 13,658 2.37%
Crook 7,445 1.29%
Fremont 39,561 6.85%
Goshen 13,292 2.30%
Hot Springs 4,568 0.79%
Johnson 8,446 1.46%
Laramie 98,865 17.12%
Lincoln 19,445 3.37%
Natrona 79,175 13.71%
Niobrara 2,400 0.42%
Park 29,210 5.06%
Platte 8,516 1.47%
Sheridan 30,219 5.23%
Sublette 9,798 1.70%
Sweetwater 42,858 7.42%
Teton 23,269 4.03%
Uinta 20,292 3.51%
Washakie 7,877 1.36%
Weston 6,924 1.20%