Ranking of Wyoming Cities and Places By Percentage of Population with Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 66.76K people in Wyoming with Irish ancestry (11.58% of Wyoming population). Among all Wyoming cities and places with a population of at least 10K, Cheyenne city had the highest percentage of its population with Irish ancestry (14.43%), followed by Casper city (14.31%), and Laramie city (12.59%).

The chart and table below shows the top 10 cities with high percentage of its population having Irish ancestry.

You can see similar information for other states and for other ancestry groups in Wyoming.

Data Source: US Census Bureau.
Ranking of Wyoming Cities and Places By Percentage of Population with Irish Ancestry in 2021
Cheyenne city
Casper city
Laramie city
Jackson town
Cody city
Sheridan city
Riverton city
Evanston city
Gillette city
Green River city
Ranking of Wyoming Cities and Places By Percentage of Population with Irish Ancestry in 2021
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Rank Ciy or Place Percentage of Pop. (%)
1 Cheyenne city 14.43
2 Casper city 14.31
3 Laramie city 12.59
4 Jackson town 12.35
5 Cody city 12.29
6 Sheridan city 9.98
7 Riverton city 9.85
8 Evanston city 9.37
9 Gillette city 8.65
10 Green River city 7.49
11 Rock Springs city 6.14