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Greenwich, CT Historical First Ancestry Data
ACS 2010-2014 data
12,330 (93.26%) out of the total population of 13,221 reported first ancestry.
| Greenwich, CT | % of the Total Population | Connecticut | U.S. | |
| Arab | 180 | 1.36%, see rank | 0.61% | 0.56% |
| Czech | 126 | 0.95%, see rank | 0.37% | 0.47% |
| Danish | 36 | 0.27%, see rank | 0.33% | 0.42% |
| Dutch | 233 | 1.76%, see rank | 0.74% | 1.40% |
| English | 1,830 | 13.84%, see rank | 8.94% | 8.02% |
| French | 507 | 3.83%, see rank | 8.47% | 3.34% |
| German | 1,333 | 10.08%, see rank | 9.34% | 15.03% |
| Greek | 154 | 1.16%, see rank | 0.87% | 0.41% |
| Hungarian | 58 | 0.44%, see rank | 1.03% | 0.46% |
| Irish | 1,957 | 14.80%, see rank | 16.03% | 10.80% |
| Italian | 1,859 | 14.06%, see rank | 18.43% | 5.52% |
| Norwegian | 86 | 0.65%, see rank | 0.54% | 1.42% |
| Polish | 483 | 3.65%, see rank | 7.96% | 3.01% |
| Portuguese | 177 | 1.34%, see rank | 1.39% | 0.44% |
| Russian | 297 | 2.25%, see rank | 1.82% | 0.92% |
| Scotch-Irish | 44 | 0.33%, see rank | 0.53% | 0.99% |
| Scottish | 129 | 0.98%, see rank | 1.84% | 1.72% |
| Subsaharan African | 73 | 0.55%, see rank | 0.92% | 0.95% |
| Swedish | 459 | 3.47%, see rank | 1.71% | 1.27% |
| Swiss | 50 | 0.38%, see rank | 0.23% | 0.30% |
| Ukrainian | 16 | 0.12%, see rank | 0.55% | 0.31% |
| American | 857 | 6.48%, see rank | 3.92% | 7.12% |
| Welsh | 130 | 0.98%, see rank | 0.41% | 0.57% |
ACS 2008-2012 data
12,517 (96.58%) out of the total population of 12,960 reported first ancestry.
| Greenwich, CT | % of the Total Population | Connecticut | U.S. | |
| Arab | 247 | 1.91%, see rank | 0.60% | 0.53% |
| Czech | 77 | 0.59%, see rank | 0.41% | 0.50% |
| Danish | 66 | 0.51%, see rank | 0.36% | 0.45% |
| Dutch | 158 | 1.22%, see rank | 0.82% | 1.51% |
| English | 1,274 | 9.83%, see rank | 9.64% | 8.53% |
| French | 285 | 2.20%, see rank | 8.89% | 3.54% |
| German | 1,395 | 10.76%, see rank | 9.86% | 15.79% |
| Greek | 108 | 0.83%, see rank | 0.88% | 0.42% |
| Hungarian | 61 | 0.47%, see rank | 1.09% | 0.48% |
| Irish | 1,862 | 14.37%, see rank | 16.75% | 11.36% |
| Italian | 1,838 | 14.18%, see rank | 18.96% | 5.66% |
| Norwegian | 144 | 1.11%, see rank | 0.53% | 1.46% |
| Polish | 969 | 7.48%, see rank | 8.22% | 3.13% |
| Portuguese | 126 | 0.97%, see rank | 1.52% | 0.46% |
| Russian | 291 | 2.25%, see rank | 1.93% | 0.97% |
| Scotch-Irish | 145 | 1.12%, see rank | 0.58% | 1.07% |
| Scottish | 230 | 1.77%, see rank | 1.96% | 1.81% |
| Subsaharan African | 75 | 0.58%, see rank | 0.85% | 0.93% |
| Swedish | 410 | 3.16%, see rank | 1.79% | 1.34% |
| Swiss | 19 | 0.15%, see rank | 0.26% | 0.31% |
| Ukrainian | 31 | 0.24%, see rank | 0.60% | 0.31% |
| American | 705 | 5.44%, see rank | 3.13% | 6.72% |
| Welsh | 102 | 0.79%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
12,805 (96.49%) out of the total population of 13,271 reported first ancestry.
| Greenwich, CT | % of the Total Population | Connecticut | U.S. | |
| Arab | 62 | 0.47%, see rank | 0.50% | 0.50% |
| Czech | 79 | 0.60%, see rank | 0.45% | 0.53% |
| Danish | 87 | 0.66%, see rank | 0.38% | 0.48% |
| Dutch | 197 | 1.48%, see rank | 0.85% | 1.63% |
| English | 1,428 | 10.76%, see rank | 10.26% | 9.02% |
| French | 340 | 2.56%, see rank | 9.31% | 3.77% |
| German | 1,472 | 11.09%, see rank | 10.22% | 16.51% |
| Greek | 120 | 0.90%, see rank | 0.89% | 0.44% |
| Hungarian | 71 | 0.54%, see rank | 1.14% | 0.51% |
| Irish | 2,096 | 15.79%, see rank | 17.34% | 11.76% |
| Italian | 1,921 | 14.48%, see rank | 19.04% | 5.78% |
| Norwegian | 134 | 1.01%, see rank | 0.56% | 1.51% |
| Polish | 732 | 5.52%, see rank | 8.39% | 3.24% |
| Portuguese | 163 | 1.23%, see rank | 1.54% | 0.47% |
| Russian | 311 | 2.34%, see rank | 2.01% | 1.01% |
| Scotch-Irish | 307 | 2.31%, see rank | 1.38% | 1.72% |
| Scottish | 330 | 2.49%, see rank | 2.05% | 1.92% |
| Subsaharan African | 20 | 0.15%, see rank | 0.80% | 0.91% |
| Swedish | 307 | 2.31%, see rank | 1.88% | 1.41% |
| Swiss | 31 | 0.23%, see rank | 0.29% | 0.33% |
| Ukrainian | 73 | 0.55%, see rank | 0.63% | 0.31% |
| American | 656 | 4.94%, see rank | 2.67% | 6.28% |
| Welsh | 112 | 0.84%, see rank | 0.42% | 0.63% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.