Wyoming Population By County in 2015

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2015, the population of Wyoming was 586,389. Among all Wyoming counties, Laramie had the highest population (97,090), followed by Natrona (82,218), and Campbell (49,336). Niobrara was the least populated county (2,504).

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 2015
Wyoming Population By County in 2015
County
Population
% of State Population
Laramie 97,090 16.56
Natrona 82,218 14.02
Campbell 49,336 8.41
Sweetwater 44,780 7.64
Fremont 40,261 6.87
Albany 38,054 6.49
Sheridan 29,925 5.10
Park 28,973 4.94
Teton 23,083 3.94
Uinta 20,777 3.54
Lincoln 18,788 3.20
Carbon 15,630 2.67
Converse 14,303 2.44
Goshen 13,566 2.31
Big Horn 11,965 2.04
Sublette 10,064 1.72
Platte 8,803 1.50
Johnson 8,622 1.47
Washakie 8,282 1.41
Crook 7,441 1.27
Weston 7,202 1.23
Hot Springs 4,722 0.81
Niobrara 2,504 0.43
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