New London County, CT Population By Ancestry in 2021 (ACS-5Yrs)
Updated on March 3, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among the 269.13K New London County, CT population, 59.61K had Other Groups ancestry (22.15%), 48.14K had Unclassified ancestry (17.89%), and 46.64K had Irish ancestry (17.33%).
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 Connecticut counties, and for Connecticut.
Data Source: US Census - ACS 5-Year Estimates (2021).
New London County, CT Population By Ancestry in 2021
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| Ancestry | Number of Ancestry | Percentage of Population (%) |
|---|---|---|
| Other Groups | 59609 | 22.15 |
| Unclassified | 48144 | 17.89 |
| Irish | 46637 | 17.33 |
| Italian | 37279 | 13.85 |
| English | 33738 | 12.54 |
| German | 28061 | 10.43 |
| Polish | 18974 | 7.05 |
| French (except Basque) | 18198 | 6.76 |
| French Canadian | 10781 | 4.01 |
| American | 9152 | 3.40 |
| Scottish | 7449 | 2.77 |
| Swedish | 4803 | 1.79 |
| West Indian (except Hispanic groups) | 4477 | 1.66 |
| Portuguese | 4340 | 1.61 |
| European | 2978 | 1.11 |
| Haitian | 2863 | 1.06 |
| Russian | 2839 | 1.06 |
| Dutch | 2622 | 0.97 |
| Norwegian | 2360 | 0.88 |
| Scotch Irish | 2223 | 0.83 |
| Greek | 1983 | 0.74 |
| British | 1635 | 0.61 |
| Ukrainian | 1630 | 0.61 |
| Subsaharan African | 1415 | 0.53 |
| Welsh | 1388 | 0.52 |
| Lithuanian | 1263 | 0.47 |
| Hungarian | 1188 | 0.44 |
| Eastern European | 1182 | 0.44 |
| Canadian | 1181 | 0.44 |
| Jamaican | 963 | 0.36 |
| Finnish | 904 | 0.34 |
| African | 887 | 0.33 |
| Danish | 855 | 0.32 |
| Austrian | 763 | 0.28 |
| Czech | 759 | 0.28 |
| Scandinavian | 615 | 0.23 |
| Lebanese | 586 | 0.22 |
| Brazilian | 561 | 0.21 |
| Swiss | 506 | 0.19 |
| Slovak | 479 | 0.18 |
| Northern European | 419 | 0.16 |
| West Indian | 354 | 0.13 |
| Romanian | 349 | 0.13 |
| Belgian | 318 | 0.12 |
| Czechoslovakian | 214 | 0.08 |
| Trinidadian and Tobagonian | 207 | 0.08 |
| Croatian | 206 | 0.08 |
| Cape Verdean | 199 | 0.07 |
| Estonian | 189 | 0.07 |
| Syrian | 169 | 0.06 |
| Guyanese | 158 | 0.06 |
| Albania | 156 | 0.06 |
| Slovene | 152 | 0.06 |
| Turkish | 149 | 0.06 |
| Pennsylvania German | 138 | 0.05 |
| Yugoslavian | 124 | 0.05 |
| Serbian | 122 | 0.05 |
| Australian | 117 | 0.04 |
| Ghanaian | 117 | 0.04 |
| Egyptian | 111 | 0.04 |
| Iranian | 93 | 0.04 |
| Nigerian | 89 | 0.03 |
| Celtic | 78 | 0.03 |
| Slavic | 78 | 0.03 |
| Armenian | 73 | 0.03 |
| Liberian | 61 | 0.02 |
| Bulgarian | 42 | 0.02 |
| Dutch West Indian | 35 | 0.01 |
| Cajun | 30 | 0.01 |
| Latvian | 30 | 0.01 |
| Kenyan | 28 | 0.01 |
| Palestinian | 27 | 0.01 |
| Basque | 22 | 0.01 |
| Macedonian | 20 | 0.01 |
| Icelander | 19 | 0.01 |
| Bahamian | 18 | 0.01 |
| Barbadian | 16 | 0.01 |
| Arab | 15 | 0.01 |
| German Russian | 13 | 0.01 |
| Ugandan | 13 | 0.01 |
| Carpatho Rusyn | 11 | 0.00 |
| South African | 11 | 0.00 |
| Moroccan | 10 | 0.00 |
| Assyrian/Chaldean/Syriac | 10 | 0.00 |
| Alsatian | 9 | 0.00 |
| Maltese | 5 | 0.00 |
| British West Indian | 3 | 0.00 |
| US Virgin Islander | 2 | 0.00 |