Longmont city, CO Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 7, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 98.79K Longmont city, CO population, 26.48K had Unclassified ancestry (26.80%), 23.45K had Other Groups ancestry (23.74%), and 18.36K had German ancestry (18.59%).
The chart below shows the top 10 ancestry groups, and the table below shows both the number and percentages for all ancestry groups.
You can also see similar information for other Colorado cities and places, Colorado counties, and for Colorado.
Data Source: US Census - ACS 5-Year Estimates (2021).
Longmont city, CO Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Unclassified | 26477 | 26.80 |
| Other Groups | 23454 | 23.74 |
| German | 18360 | 18.59 |
| English | 12623 | 12.78 |
| Irish | 11926 | 12.07 |
| Italian | 4064 | 4.11 |
| American | 3370 | 3.41 |
| European | 2834 | 2.87 |
| French (except Basque) | 2760 | 2.79 |
| Scottish | 2716 | 2.75 |
| Polish | 2694 | 2.73 |
| Norwegian | 2516 | 2.55 |
| Swedish | 1691 | 1.71 |
| Dutch | 1573 | 1.59 |
| Scotch Irish | 1440 | 1.46 |
| British | 1216 | 1.23 |
| Russian | 832 | 0.84 |
| Danish | 761 | 0.77 |
| Welsh | 667 | 0.68 |
| French Canadian | 563 | 0.57 |
| Greek | 521 | 0.53 |
| Eastern European | 463 | 0.47 |
| Lithuanian | 425 | 0.43 |
| Swiss | 418 | 0.42 |
| Czech | 402 | 0.41 |
| Scandinavian | 402 | 0.41 |
| Subsaharan African | 396 | 0.40 |
| Ukrainian | 353 | 0.36 |
| Austrian | 314 | 0.32 |
| Hungarian | 306 | 0.31 |
| Belgian | 305 | 0.31 |
| Portuguese | 242 | 0.25 |
| Czechoslovakian | 210 | 0.21 |
| Canadian | 202 | 0.20 |
| Finnish | 199 | 0.20 |
| Northern European | 195 | 0.20 |
| Ethiopian | 181 | 0.18 |
| Moroccan | 173 | 0.18 |
| Celtic | 138 | 0.14 |
| Slovak | 128 | 0.13 |
| African | 123 | 0.13 |
| Romanian | 107 | 0.11 |
| Yugoslavian | 103 | 0.10 |
| Lebanese | 99 | 0.10 |
| Brazilian | 98 | 0.10 |
| Iranian | 98 | 0.10 |
| South African | 74 | 0.08 |
| Bulgarian | 59 | 0.06 |
| Croatian | 59 | 0.06 |
| Pennsylvania German | 50 | 0.05 |