Madison County, ID Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 50.98K Madison County, ID population, 16.45K had English ancestry (32.27%), 12.13K had Unclassified ancestry (23.80%), and 8.44K had Other Groups ancestry (16.55%).
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 Idaho counties, and for Idaho.
NB: People could belong to one or more ancestry groups.
Data Source: US Census Bureau.
Madison County, ID Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| English | 16450 | 32.27 |
| Unclassified | 12132 | 23.80 |
| Other Groups | 8439 | 16.55 |
| German | 5847 | 11.47 |
| European | 3045 | 5.97 |
| Danish | 2893 | 5.68 |
| American | 2829 | 5.55 |
| Scottish | 2759 | 5.41 |
| Swedish | 2032 | 3.99 |
| Irish | 1957 | 3.84 |
| Welsh | 1626 | 3.19 |
| Norwegian | 1077 | 2.11 |
| French (except Basque) | 1017 | 2.00 |
| British | 865 | 1.70 |
| Swiss | 772 | 1.51 |
| Italian | 738 | 1.45 |
| Dutch | 662 | 1.30 |
| Scandinavian | 588 | 1.15 |
| Scotch Irish | 461 | 0.90 |
| Polish | 239 | 0.47 |
| Canadian | 115 | 0.23 |
| Portuguese | 106 | 0.21 |
| Russian | 95 | 0.19 |
| Northern European | 64 | 0.13 |
| French Canadian | 60 | 0.12 |
| Brazilian | 56 | 0.11 |
| Eastern European | 51 | 0.10 |
| West Indian (except Hispanic groups) | 46 | 0.09 |
| Haitian | 46 | 0.09 |
| Subsaharan African | 33 | 0.07 |
| African | 33 | 0.07 |
| Czech | 32 | 0.06 |
| Austrian | 31 | 0.06 |
| Greek | 30 | 0.06 |
| Czechoslovakian | 24 | 0.05 |
| Lithuanian | 23 | 0.05 |
| Hungarian | 22 | 0.04 |
| Finnish | 20 | 0.04 |
| Icelander | 19 | 0.04 |
| Ukrainian | 16 | 0.03 |
| Romanian | 14 | 0.03 |
| Croatian | 12 | 0.02 |
| Armenian | 8 | 0.02 |
| Belgian | 7 | 0.01 |