Castro County, TX Population By Ancestry in 2021 (ACS-5Yrs)

Updated on April 15, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 7.45K Castro County, TX population, 4.88K had Other Groups ancestry (65.45%), 1.13K had Unclassified ancestry (15.13%), and 755 had German ancestry (10.13%).

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

You can see similar information for other Texas counties, and for Texas.

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

Data Source: US Census Bureau.

Castro County, TX Percentage of Ancestry Population in 2021

Other Groups

Unclassified

German

English

American

Irish

European

West Indian (except Hispanic groups)

Dutch West Indian

Scottish

Castro County, TX Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Other Groups	4876	65.45
Unclassified	1127	15.13
German	755	10.13
English	400	5.37
American	335	4.50
Irish	174	2.34
European	64	0.86
West Indian (except Hispanic groups)	56	0.75
Dutch West Indian	56	0.75
Scottish	50	0.67
Scotch Irish	41	0.55
French (except Basque)	32	0.43
Italian	32	0.43
Subsaharan African	32	0.43
African	32	0.43
Welsh	21	0.28
Polish	14	0.19
Cajun	12	0.16
Norwegian	10	0.13
Dutch	8	0.11
Ukrainian	5	0.07
British	3	0.04