Jefferson 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 256.76K Jefferson County, TX population, 150.30K had Other Groups ancestry (58.54%), 43.87K had Unclassified ancestry (17.09%), and 15.60K had German ancestry (6.08%).
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.
Jefferson County, TX Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| Other Groups | 150304 | 58.54 |
| Unclassified | 43870 | 17.09 |
| German | 15604 | 6.08 |
| Irish | 14487 | 5.64 |
| French (except Basque) | 13376 | 5.21 |
| English | 10691 | 4.16 |
| American | 7578 | 2.95 |
| Italian | 6656 | 2.59 |
| French Canadian | 2871 | 1.12 |
| Scotch Irish | 2170 | 0.85 |
| European | 2020 | 0.79 |
| Cajun | 1997 | 0.78 |
| Subsaharan African | 1752 | 0.68 |
| Scottish | 1680 | 0.65 |
| Dutch | 1675 | 0.65 |
| African | 1363 | 0.53 |
| Norwegian | 969 | 0.38 |
| Polish | 720 | 0.28 |
| British | 647 | 0.25 |
| West Indian (except Hispanic groups) | 547 | 0.21 |
| Czech | 537 | 0.21 |
| Swedish | 478 | 0.19 |
| Russian | 419 | 0.16 |
| Nigerian | 333 | 0.13 |
| Welsh | 332 | 0.13 |
| Greek | 309 | 0.12 |
| Lebanese | 301 | 0.12 |
| Scandinavian | 281 | 0.11 |
| Portuguese | 232 | 0.09 |
| Northern European | 206 | 0.08 |
| Hungarian | 186 | 0.07 |
| Brazilian | 158 | 0.06 |
| Dutch West Indian | 147 | 0.06 |
| Danish | 140 | 0.06 |
| Eastern European | 131 | 0.05 |
| Bahamian | 131 | 0.05 |
| Syrian | 106 | 0.04 |
| Ukrainian | 100 | 0.04 |
| Jamaican | 96 | 0.04 |
| Canadian | 93 | 0.04 |
| Croatian | 82 | 0.03 |
| Finnish | 72 | 0.03 |
| Haitian | 71 | 0.03 |
| Belgian | 67 | 0.03 |
| Assyrian/Chaldean/Syriac | 65 | 0.03 |
| Slovene | 65 | 0.03 |
| Palestinian | 63 | 0.03 |
| Austrian | 63 | 0.03 |
| Lithuanian | 59 | 0.02 |
| Arab | 56 | 0.02 |
| Barbadian | 50 | 0.02 |
| Iranian | 49 | 0.02 |
| Celtic | 36 | 0.01 |
| Romanian | 34 | 0.01 |
| Slovak | 27 | 0.01 |
| Egyptian | 25 | 0.01 |
| Iraqi | 22 | 0.01 |
| Estonian | 20 | 0.01 |
| Australian | 16 | 0.01 |
| Armenian | 12 | 0.01 |
| Sierra Leonean | 12 | 0.01 |
| Czechoslovakian | 11 | 0.004 |
| Albania | 10 | 0.004 |
| Sudanese | 10 | 0.004 |
| British West Indian | 10 | 0.004 |
| Trinidadian and Tobagonian | 10 | 0.004 |
| Swiss | 9 | 0.004 |
| Icelander | 8 | 0.003 |
| Pennsylvania German | 7 | 0.003 |
| Jordanian | 6 | 0.002 |
| Guyanese | 6 | 0.002 |
| Zimbabwean | 6 | 0.002 |
| Turkish | 3 | 0.001 |
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