Wyoming Population By County in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the population of Wyoming was 577,664. Among all Wyoming counties, Laramie had the highest population (100,730), followed by Natrona (80,299), and Campbell (47,147). Niobrara was the least populated county (2,454).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Wyoming Population By County in 2020
Wyoming Population By County in 2020
County
Population
% of State Population
Laramie 100,730 17.44
Natrona 80,299 13.90
Campbell 47,147 8.16
Sweetwater 42,197 7.31
Fremont 39,202 6.79
Albany 37,112 6.42
Sheridan 31,000 5.37
Park 29,669 5.14
Teton 23,379 4.05
Uinta 20,457 3.54
Lincoln 19,658 3.40
Carbon 14,509 2.51
Converse 13,746 2.38
Goshen 12,515 2.17
Big Horn 11,484 1.99
Sublette 8,736 1.51
Platte 8,631 1.49
Johnson 8,467 1.47
Washakie 7,657 1.33
Crook 7,178 1.24
Weston 6,816 1.18
Hot Springs 4,621 0.80
Niobrara 2,454 0.43
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