Casper city, 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 58.55K Casper city, WY population, 16.80K had Other Groups ancestry (28.69%), 13.02K had German ancestry (22.23%), and 11.11K had Unclassified ancestry (18.98%).

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.

Casper city, WY Percentage of Ancestry Population in 2021

Other Groups

German

Unclassified

Irish

English

American

Norwegian

French (except Basque)

European

Italian

Casper city, WY Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Other Groups	16795	28.69
German	13016	22.23
Unclassified	11110	18.98
Irish	8377	14.31
English	6497	11.10
American	2453	4.19
Norwegian	2118	3.62
French (except Basque)	1616	2.76
European	1505	2.57
Italian	1457	2.49
Scottish	1452	2.48
Scandinavian	1182	2.02
Swedish	1136	1.94
Polish	1103	1.88
Welsh	916	1.57
Dutch	678	1.16
Danish	656	1.12
Scotch Irish	537	0.92
British	513	0.88
Greek	436	0.75
Czech	405	0.69
Eastern European	350	0.60
Hungarian	319	0.55
Russian	305	0.52
Austrian	303	0.52
French Canadian	300	0.51
Belgian	270	0.46
Swiss	175	0.30
Finnish	149	0.25
Croatian	143	0.24
Yugoslavian	141	0.24
Northern European	140	0.24
West Indian (except Hispanic groups)	75	0.13
Belizean	75	0.13
Canadian	72	0.12
Portuguese	60	0.10
Arab	57	0.10
Lithuanian	54	0.09
Slovak	47	0.08
Serbian	46	0.08
Latvian	41	0.07
Celtic	34	0.06
Czechoslovakian	32	0.06
Basque	31	0.05
Slavic	30	0.05
Icelander	13	0.02
Ukrainian	13	0.02
Pennsylvania German	12	0.02
Subsaharan African	11	0.02
African	11	0.02