Rock River town, WY Population By Ancestry in 2021 (ACS-5Yrs)

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 244 Rock River town, WY population, 90 had German ancestry (36.89%), 59 had Irish ancestry (24.18%), and 54 had Other Groups ancestry (22.13%).

The chart below shows the top 10 ancestry groups, and the table below shows both the population and percentages for many ancestry groups.

You can also see similar information for other Wyoming cities and places, and for Wyoming.

NB: People could belong to one or more ancestry groups.

Data Source: US Census Bureau.

Rock River town, WY Percentage of Ancestry Population in 2021

German

Irish

Other Groups

Unclassified

English

American

Scottish

Polish

French (except Basque)

Welsh

Rock River town, WY Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
German	90	36.89
Irish	59	24.18
Other Groups	54	22.13
Unclassified	40	16.39
English	28	11.48
American	26	10.66
Scottish	25	10.25
Polish	24	9.84
French (except Basque)	19	7.79
Welsh	9	3.69
Italian	6	2.46
Danish	5	2.05
European	5	2.05
British	3	1.23