Frederick County, MD Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 267.50K Frederick County, MD population, 64.59K had Other Groups ancestry (24.15%), 61.09K had Unclassified ancestry (22.84%), and 51.76K had German ancestry (19.35%).
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 Maryland counties, and for Maryland.
NB: People could belong to one or more ancestry groups.
Data Source: US Census Bureau.
Frederick County, MD Population By Ancestry in 2021
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| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| Other Groups | 64587 | 24.15 |
| Unclassified | 61087 | 22.84 |
| German | 51760 | 19.35 |
| Irish | 37449 | 14.00 |
| English | 32962 | 12.32 |
| Italian | 18843 | 7.04 |
| American | 13912 | 5.20 |
| Polish | 7867 | 2.94 |
| French (except Basque) | 6166 | 2.31 |
| Scottish | 6152 | 2.30 |
| European | 5458 | 2.04 |
| Subsaharan African | 5007 | 1.87 |
| Scotch Irish | 2641 | 0.99 |
| Russian | 2596 | 0.97 |
| British | 2457 | 0.92 |
| African | 2397 | 0.90 |
| Welsh | 2254 | 0.84 |
| Dutch | 2205 | 0.82 |
| Norwegian | 1981 | 0.74 |
| West Indian (except Hispanic groups) | 1960 | 0.73 |
| Swedish | 1768 | 0.66 |
| Hungarian | 1476 | 0.55 |
| Greek | 1349 | 0.50 |
| Ukrainian | 1289 | 0.48 |
| French Canadian | 1162 | 0.43 |
| Slovak | 1147 | 0.43 |
| Eastern European | 1030 | 0.39 |
| Czech | 1023 | 0.38 |
| Swiss | 941 | 0.35 |
| Jamaican | 934 | 0.35 |
| Lithuanian | 824 | 0.31 |
| Portuguese | 740 | 0.28 |
| Scandinavian | 696 | 0.26 |
| Nigerian | 676 | 0.25 |
| Ghanaian | 597 | 0.22 |
| Danish | 497 | 0.19 |
| Canadian | 476 | 0.18 |
| Trinidadian and Tobagonian | 470 | 0.18 |
| Northern European | 462 | 0.17 |
| Austrian | 445 | 0.17 |
| Iranian | 440 | 0.16 |
| Czechoslovakian | 415 | 0.16 |
| Croatian | 379 | 0.14 |
| Lebanese | 369 | 0.14 |
| Slavic | 330 | 0.12 |
| Romanian | 292 | 0.11 |
| Finnish | 275 | 0.10 |
| Turkish | 256 | 0.10 |
| Brazilian | 252 | 0.09 |
| Belgian | 220 | 0.08 |
| Kenyan | 214 | 0.08 |
| Haitian | 202 | 0.08 |
| Arab | 192 | 0.07 |
| West Indian | 185 | 0.07 |
| Albania | 170 | 0.06 |
| Bahamian | 158 | 0.06 |
| Yugoslavian | 157 | 0.06 |
| Pennsylvania German | 155 | 0.06 |
| Moroccan | 148 | 0.06 |
| Egyptian | 142 | 0.05 |
| Guyanese | 137 | 0.05 |
| Armenian | 134 | 0.05 |
| Slovene | 134 | 0.05 |
| Israeli | 133 | 0.05 |
| Latvian | 128 | 0.05 |
| Australian | 122 | 0.05 |
| Palestinian | 120 | 0.05 |
| Serbian | 112 | 0.04 |
| Liberian | 108 | 0.04 |
| Bulgarian | 97 | 0.04 |
| Estonian | 88 | 0.03 |
| Ethiopian | 80 | 0.03 |
| Syrian | 77 | 0.03 |
| Barbadian | 74 | 0.03 |
| Jordanian | 70 | 0.03 |
| Basque | 61 | 0.02 |
| South African | 58 | 0.02 |
| British West Indian | 54 | 0.02 |
| Somali | 50 | 0.02 |
| Celtic | 46 | 0.02 |
| New Zealander | 45 | 0.02 |
| Afghan | 44 | 0.02 |
| US Virgin Islander | 44 | 0.02 |
| Iraqi | 32 | 0.01 |
| Carpatho Rusyn | 24 | 0.01 |
| Luxembourger | 21 | 0.01 |
| Cajun | 19 | 0.01 |
| Ugandan | 19 | 0.01 |
| Senegalese | 17 | 0.01 |
| Macedonian | 11 | 0.00 |
| Icelander | 3 | 0.00 |
| Maltese | 2 | 0.00 |