Mercer County, PA Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 111.22K Mercer County, PA population, 29.64K had Unclassified ancestry (26.65%), 26.14K had German ancestry (23.51%), and 17.55K had Irish ancestry (15.78%).
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 see similar information for other Pennsylvania counties, and for Pennsylvania.
Data Source: US Census - ACS 5-Year Estimates (2021).
Mercer County, PA Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Unclassified | 29643 | 26.65 |
| German | 26142 | 23.51 |
| Irish | 17551 | 15.78 |
| Other Groups | 13316 | 11.97 |
| Italian | 11926 | 10.72 |
| English | 10357 | 9.31 |
| American | 7569 | 6.81 |
| Polish | 5782 | 5.20 |
| Slovak | 2839 | 2.55 |
| Scotch Irish | 2814 | 2.53 |
| Scottish | 2540 | 2.28 |
| Dutch | 2053 | 1.85 |
| Welsh | 1825 | 1.64 |
| Hungarian | 1820 | 1.64 |
| European | 1367 | 1.23 |
| French (except Basque) | 1327 | 1.19 |
| Russian | 1110 | 1.00 |
| Swedish | 1093 | 0.98 |
| Croatian | 1055 | 0.95 |
| Pennsylvania German | 853 | 0.77 |
| Romanian | 470 | 0.42 |
| Greek | 461 | 0.42 |
| Ukrainian | 450 | 0.41 |
| British | 447 | 0.40 |
| Serbian | 429 | 0.39 |
| Czech | 401 | 0.36 |
| Eastern European | 394 | 0.35 |
| Swiss | 373 | 0.34 |
| Austrian | 305 | 0.27 |
| Norwegian | 227 | 0.20 |
| Subsaharan African | 214 | 0.19 |
| Slavic | 198 | 0.18 |
| Lithuanian | 192 | 0.17 |
| French Canadian | 171 | 0.15 |
| Slovene | 143 | 0.13 |
| Czechoslovakian | 130 | 0.12 |
| Scandinavian | 127 | 0.11 |
| Finnish | 126 | 0.11 |
| Northern European | 103 | 0.09 |
| Belgian | 95 | 0.09 |
| African | 91 | 0.08 |
| Bulgarian | 90 | 0.08 |
| Lebanese | 85 | 0.08 |
| Cape Verdean | 84 | 0.08 |
| Syrian | 82 | 0.07 |
| West Indian (except Hispanic groups) | 81 | 0.07 |
| Portuguese | 80 | 0.07 |
| Danish | 61 | 0.06 |
| Carpatho Rusyn | 55 | 0.05 |
| Latvian | 48 | 0.04 |
| Jamaican | 42 | 0.04 |
| Canadian | 37 | 0.03 |
| Egyptian | 26 | 0.02 |
| Palestinian | 26 | 0.02 |
| Guyanese | 26 | 0.02 |
| Yugoslavian | 20 | 0.02 |
| Iranian | 18 | 0.02 |
| Ethiopian | 18 | 0.02 |
| Haitian | 17 | 0.02 |
| Armenian | 15 | 0.01 |
| Australian | 15 | 0.01 |
| Celtic | 14 | 0.01 |
| Macedonian | 13 | 0.01 |
| Nigerian | 13 | 0.01 |
| West Indian | 13 | 0.01 |
| Luxembourger | 12 | 0.01 |
| Brazilian | 11 | 0.01 |
| Turkish | 9 | 0.01 |
| Trinidadian and Tobagonian | 9 | 0.01 |
| South African | 6 | 0.01 |
| Senegalese | 4 | 0.00 |
| Moroccan | 2 | 0.00 |
| Estonian | 1 | 0.00 |