Regional School Unit 21 Historical First Ancestry Data
ACS 2010-2014 data
17,039 (91.70%) out of the total population of 18,582 reported first ancestry.
| Regional School Unit 21 | % of the Total Population | Maine | U.S. | |
| Arab | 70 | 0.38%, see rank | 0.33% | 0.56% |
| Czech | 14 | 0.08%, see rank | 0.17% | 0.47% |
| Danish | 57 | 0.31%, see rank | 0.42% | 0.42% |
| Dutch | 211 | 1.14%, see rank | 0.98% | 1.40% |
| English | 4,790 | 25.78%, see rank | 21.18% | 8.02% |
| French | 3,928 | 21.14%, see rank | 23.94% | 3.34% |
| German | 2,042 | 10.99%, see rank | 8.14% | 15.03% |
| Greek | 107 | 0.58%, see rank | 0.54% | 0.41% |
| Hungarian | 111 | 0.60%, see rank | 0.26% | 0.46% |
| Irish | 4,596 | 24.73%, see rank | 17.63% | 10.80% |
| Italian | 1,371 | 7.38%, see rank | 5.68% | 5.52% |
| Norwegian | 191 | 1.03%, see rank | 0.77% | 1.42% |
| Polish | 776 | 4.18%, see rank | 2.20% | 3.01% |
| Portuguese | 185 | 1.00%, see rank | 0.67% | 0.44% |
| Russian | 431 | 2.32%, see rank | 0.75% | 0.92% |
| Scotch-Irish | 524 | 2.82%, see rank | 1.64% | 0.99% |
| Scottish | 991 | 5.33%, see rank | 5.16% | 1.72% |
| Subsaharan African | 32 | 0.17%, see rank | 0.58% | 0.95% |
| Swedish | 668 | 3.59%, see rank | 1.86% | 1.27% |
| Swiss | 58 | 0.31%, see rank | 0.19% | 0.30% |
| Ukrainian | 115 | 0.62%, see rank | 0.18% | 0.31% |
| American | 1,048 | 5.64%, see rank | 8.37% | 7.12% |
| Welsh | 151 | 0.81%, see rank | 0.76% | 0.57% |
ACS 2008-2012 data
16,820 (91.30%) out of the total population of 18,423 reported first ancestry.
| Regional School Unit 21 | % of the Total Population | Maine | U.S. | |
| Arab | 91 | 0.49%, see rank | 0.30% | 0.53% |
| Czech | 32 | 0.17%, see rank | 0.18% | 0.50% |
| Danish | 35 | 0.19%, see rank | 0.43% | 0.45% |
| Dutch | 223 | 1.21%, see rank | 1.02% | 1.51% |
| English | 4,434 | 24.07%, see rank | 22.20% | 8.53% |
| French | 4,176 | 22.67%, see rank | 24.41% | 3.54% |
| German | 1,786 | 9.69%, see rank | 8.18% | 15.79% |
| Greek | 149 | 0.81%, see rank | 0.52% | 0.42% |
| Hungarian | 87 | 0.47%, see rank | 0.28% | 0.48% |
| Irish | 4,357 | 23.65%, see rank | 17.70% | 11.36% |
| Italian | 1,242 | 6.74%, see rank | 5.77% | 5.66% |
| Norwegian | 154 | 0.84%, see rank | 0.77% | 1.46% |
| Polish | 830 | 4.51%, see rank | 2.22% | 3.13% |
| Portuguese | 92 | 0.50%, see rank | 0.63% | 0.46% |
| Russian | 463 | 2.51%, see rank | 0.67% | 0.97% |
| Scotch-Irish | 420 | 2.28%, see rank | 1.74% | 1.07% |
| Scottish | 1,172 | 6.36%, see rank | 5.43% | 1.81% |
| Subsaharan African | 13 | 0.07%, see rank | 0.49% | 0.93% |
| Swedish | 595 | 3.23%, see rank | 1.87% | 1.34% |
| Swiss | 69 | 0.37%, see rank | 0.19% | 0.31% |
| Ukrainian | 112 | 0.61%, see rank | 0.20% | 0.31% |
| American | 1,011 | 5.49%, see rank | 7.88% | 6.72% |
| Welsh | 136 | 0.74%, see rank | 0.84% | 0.60% |
ACS 2006-2010 data
16,912 (91.80%) out of the total population of 18,423 reported first ancestry.
| Regional School Unit 21 | % of the Total Population | Maine | U.S. | |
| Arab | 66 | 0.36%, see rank | 0.26% | 0.50% |
| Czech | 55 | 0.30%, see rank | 0.17% | 0.53% |
| Danish | 39 | 0.21%, see rank | 0.48% | 0.48% |
| Dutch | 248 | 1.35%, see rank | 1.05% | 1.63% |
| English | 4,610 | 25.02%, see rank | 23.17% | 9.02% |
| French | 4,389 | 23.82%, see rank | 25.04% | 3.77% |
| German | 1,872 | 10.16%, see rank | 8.39% | 16.51% |
| Greek | 158 | 0.86%, see rank | 0.50% | 0.44% |
| Hungarian | 53 | 0.29%, see rank | 0.32% | 0.51% |
| Irish | 4,304 | 23.36%, see rank | 17.92% | 11.76% |
| Italian | 1,132 | 6.14%, see rank | 5.71% | 5.78% |
| Norwegian | 151 | 0.82%, see rank | 0.76% | 1.51% |
| Polish | 695 | 3.77%, see rank | 2.29% | 3.24% |
| Portuguese | 88 | 0.48%, see rank | 0.62% | 0.47% |
| Russian | 260 | 1.41%, see rank | 0.73% | 1.01% |
| Scotch-Irish | 873 | 4.74%, see rank | 3.72% | 1.72% |
| Scottish | 1,174 | 6.37%, see rank | 5.60% | 1.92% |
| Subsaharan African | 9 | 0.05%, see rank | 0.45% | 0.91% |
| Swedish | 541 | 2.94%, see rank | 1.89% | 1.41% |
| Swiss | 10 | 0.05%, see rank | 0.19% | 0.33% |
| Ukrainian | 10 | 0.05%, see rank | 0.17% | 0.31% |
| American | 1,023 | 5.55%, see rank | 6.96% | 6.28% |
| Welsh | 83 | 0.45%, see rank | 0.87% | 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.