Northumberland County, PA Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 91.85K Northumberland County, PA population, 30.62K had German ancestry (33.33%), 22.04K had Unclassified ancestry (24.00%), and 9.43K had Irish ancestry (10.26%).
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 Pennsylvania counties, and for Pennsylvania.
NB: People could belong to one or more ancestry groups.
Data Source: US Census Bureau.
Northumberland County, PA Population By Ancestry in 2021
Items per page:
0 of 0
| Ancestry | Population | Percent of Pop. (%) |
|---|---|---|
| German | 30615 | 33.33 |
| Unclassified | 22042 | 24.00 |
| Irish | 9428 | 10.26 |
| Other Groups | 9342 | 10.17 |
| Polish | 8628 | 9.39 |
| English | 7621 | 8.30 |
| Italian | 6468 | 7.04 |
| American | 4381 | 4.77 |
| Dutch | 3485 | 3.79 |
| Pennsylvania German | 2574 | 2.80 |
| Welsh | 1322 | 1.44 |
| Scottish | 1297 | 1.41 |
| French (except Basque) | 1094 | 1.19 |
| Slovak | 965 | 1.05 |
| Ukrainian | 922 | 1.00 |
| Russian | 774 | 0.84 |
| Lithuanian | 639 | 0.70 |
| European | 551 | 0.60 |
| Austrian | 535 | 0.58 |
| Scotch Irish | 493 | 0.54 |
| Swedish | 372 | 0.41 |
| British | 363 | 0.40 |
| Hungarian | 317 | 0.35 |
| Swiss | 291 | 0.32 |
| Eastern European | 251 | 0.27 |
| Czech | 191 | 0.21 |
| Subsaharan African | 188 | 0.21 |
| Norwegian | 153 | 0.17 |
| Romanian | 138 | 0.15 |
| Belgian | 134 | 0.15 |
| African | 122 | 0.13 |
| Greek | 116 | 0.13 |
| Lebanese | 102 | 0.11 |
| Slavic | 101 | 0.11 |
| West Indian (except Hispanic groups) | 91 | 0.10 |
| Scandinavian | 83 | 0.09 |
| Northern European | 63 | 0.07 |
| Portuguese | 62 | 0.07 |
| Czechoslovakian | 56 | 0.06 |
| Jamaican | 56 | 0.06 |
| French Canadian | 46 | 0.05 |
| Danish | 44 | 0.05 |
| Haitian | 32 | 0.04 |
| Slovene | 31 | 0.03 |
| Guyanese | 23 | 0.03 |
| Jordanian | 22 | 0.02 |
| Macedonian | 16 | 0.02 |
| Nigerian | 16 | 0.02 |
| Serbian | 11 | 0.01 |
| Bulgarian | 8 | 0.01 |
| Cypriot | 8 | 0.01 |
| Yugoslavian | 8 | 0.01 |
| Moroccan | 7 | 0.01 |
| Icelander | 7 | 0.01 |
| Egyptian | 6 | 0.01 |
| Canadian | 6 | 0.01 |
| Trinidadian and Tobagonian | 3 | 0.00 |
| Carpatho Rusyn | 2 | 0.00 |
| Croatian | 2 | 0.00 |