McMullen 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 729 McMullen County, TX population, 373 had Other Groups ancestry (51.17%), 132 had Irish ancestry (18.11%), and 119 had Unclassified ancestry (16.32%).

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.

McMullen County, TX Percentage of Ancestry Population in 2021

Other Groups

Irish

Unclassified

German

English

American

Scottish

Swedish

European

Czechoslovakian

McMullen County, TX Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Other Groups	373	51.17
Irish	132	18.11
Unclassified	119	16.32
German	78	10.70
English	63	8.64
American	32	4.39
Scottish	24	3.29
Swedish	12	1.65
European	8	1.10
Czechoslovakian	7	0.96
Scandinavian	5	0.69
British	2	0.27
French (except Basque)	2	0.27
Polish	1	0.14