San Jacinto 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 27.38K San Jacinto County, TX population, 10.26K had Unclassified ancestry (37.47%), 6.70K had Other Groups ancestry (24.47%), and 3.36K had American ancestry (12.28%).

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.

San Jacinto County, TX Percentage of Ancestry Population in 2021

Unclassified

Other Groups

American

Irish

German

English

French (except Basque)

Italian

Scottish

Scotch Irish

San Jacinto County, TX Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Unclassified	10259	37.47
Other Groups	6701	24.47
American	3361	12.28
Irish	2445	8.93
German	2223	8.12
English	2070	7.56
French (except Basque)	1046	3.82
Italian	975	3.56
Scottish	531	1.94
Scotch Irish	506	1.85
Polish	504	1.84
European	270	0.99
Dutch	225	0.82
Swedish	168	0.61
Czech	147	0.54
French Canadian	139	0.51
Norwegian	122	0.45
Ukrainian	109	0.40
Swiss	94	0.34
Portuguese	92	0.34
Scandinavian	75	0.27
Eastern European	73	0.27
Welsh	66	0.24
British	65	0.24
Belgian	35	0.13
Subsaharan African	35	0.13
African	35	0.13
Syrian	24	0.09
Northern European	22	0.08
Cajun	14	0.05
Czechoslovakian	4	0.02
Hungarian	3	0.01
Russian	2	0.01
Danish	1	0.004