Newcastle 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 3.28K Newcastle city, WY population, 893 had Unclassified ancestry (27.20%), 816 had German ancestry (24.86%), and 811 had English ancestry (24.70%).

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.

Newcastle city, WY Percentage of Ancestry Population in 2021

Unclassified

German

English

Irish

Other Groups

Swedish

Norwegian

Welsh

Scottish

American

Newcastle city, WY Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Unclassified	893	27.20
German	816	24.86
English	811	24.70
Irish	479	14.59
Other Groups	376	11.45
Swedish	230	7.01
Norwegian	193	5.88
Welsh	125	3.81
Scottish	110	3.35
American	97	2.96
Dutch	87	2.65
French (except Basque)	75	2.28
Polish	48	1.46
Scandinavian	39	1.19
European	35	1.07
British	25	0.76
Italian	15	0.46
Slovak	14	0.43
Czech	11	0.34
Danish	11	0.34
Swiss	11	0.34
Belgian	10	0.31
Luxembourger	7	0.21
Icelander	5	0.15
Scotch Irish	5	0.15
Portuguese	2	0.06
Basque	1	0.03