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Rochester Community Unit School District 3A Historical First Ancestry Data
ACS 2010-2014 data
8,886 (82.43%) out of the total population of 10,780 reported first ancestry.
| Rochester Community Unit School District 3A | % of the Total Population | Illinois | U.S. | |
| Arab | 46 | 0.43%, see rank | 0.71% | 0.56% |
| Czech | 57 | 0.53%, see rank | 0.92% | 0.47% |
| Danish | 37 | 0.34%, see rank | 0.38% | 0.42% |
| Dutch | 135 | 1.25%, see rank | 1.37% | 1.40% |
| English | 1,652 | 15.32%, see rank | 5.90% | 8.02% |
| French | 344 | 3.19%, see rank | 2.13% | 3.34% |
| German | 3,916 | 36.33%, see rank | 19.07% | 15.03% |
| Greek | 9 | 0.08%, see rank | 0.76% | 0.41% |
| Hungarian | 31 | 0.29%, see rank | 0.40% | 0.46% |
| Irish | 1,950 | 18.09%, see rank | 12.00% | 10.80% |
| Italian | 562 | 5.21%, see rank | 6.14% | 5.52% |
| Norwegian | 102 | 0.95%, see rank | 1.25% | 1.42% |
| Polish | 262 | 2.43%, see rank | 7.22% | 3.01% |
| Portuguese | 19 | 0.18%, see rank | 0.08% | 0.44% |
| Russian | 27 | 0.25%, see rank | 0.97% | 0.92% |
| Scotch-Irish | 136 | 1.26%, see rank | 0.59% | 0.99% |
| Scottish | 227 | 2.11%, see rank | 1.16% | 1.72% |
| Subsaharan African | 0 | 0.00%, see rank | 0.64% | 0.95% |
| Swedish | 171 | 1.59%, see rank | 2.13% | 1.27% |
| Swiss | 7 | 0.06%, see rank | 0.27% | 0.30% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.31% |
| American | 958 | 8.89%, see rank | 5.00% | 7.12% |
| Welsh | 119 | 1.10%, see rank | 0.37% | 0.57% |
ACS 2008-2012 data
8,795 (85.03%) out of the total population of 10,343 reported first ancestry.
| Rochester Community Unit School District 3A | % of the Total Population | Illinois | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.64% | 0.53% |
| Czech | 111 | 1.07%, see rank | 0.96% | 0.50% |
| Danish | 30 | 0.29%, see rank | 0.40% | 0.45% |
| Dutch | 237 | 2.29%, see rank | 1.46% | 1.51% |
| English | 1,580 | 15.28%, see rank | 6.23% | 8.53% |
| French | 395 | 3.82%, see rank | 2.26% | 3.54% |
| German | 3,679 | 35.57%, see rank | 19.89% | 15.79% |
| Greek | 14 | 0.14%, see rank | 0.78% | 0.42% |
| Hungarian | 32 | 0.31%, see rank | 0.41% | 0.48% |
| Irish | 1,708 | 16.51%, see rank | 12.52% | 11.36% |
| Italian | 569 | 5.50%, see rank | 6.29% | 5.66% |
| Norwegian | 47 | 0.45%, see rank | 1.30% | 1.46% |
| Polish | 190 | 1.84%, see rank | 7.47% | 3.13% |
| Portuguese | 34 | 0.33%, see rank | 0.08% | 0.46% |
| Russian | 30 | 0.29%, see rank | 1.03% | 0.97% |
| Scotch-Irish | 41 | 0.40%, see rank | 0.65% | 1.07% |
| Scottish | 304 | 2.94%, see rank | 1.20% | 1.81% |
| Subsaharan African | 0 | 0.00%, see rank | 0.62% | 0.93% |
| Swedish | 164 | 1.59%, see rank | 2.24% | 1.34% |
| Swiss | 35 | 0.34%, see rank | 0.29% | 0.31% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.31% |
| American | 1,097 | 10.61%, see rank | 4.85% | 6.72% |
| Welsh | 229 | 2.21%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
8,880 (87.49%) out of the total population of 10,150 reported first ancestry.
| Rochester Community Unit School District 3A | % of the Total Population | Illinois | U.S. | |
| Arab | 36 | 0.35%, see rank | 0.55% | 0.50% |
| Czech | 50 | 0.49%, see rank | 1.01% | 0.53% |
| Danish | 30 | 0.30%, see rank | 0.42% | 0.48% |
| Dutch | 267 | 2.63%, see rank | 1.58% | 1.63% |
| English | 1,657 | 16.33%, see rank | 6.56% | 9.02% |
| French | 374 | 3.68%, see rank | 2.43% | 3.77% |
| German | 4,030 | 39.70%, see rank | 20.72% | 16.51% |
| Greek | 33 | 0.33%, see rank | 0.83% | 0.44% |
| Hungarian | 84 | 0.83%, see rank | 0.43% | 0.51% |
| Irish | 1,945 | 19.16%, see rank | 12.94% | 11.76% |
| Italian | 881 | 8.68%, see rank | 6.35% | 5.78% |
| Norwegian | 69 | 0.68%, see rank | 1.36% | 1.51% |
| Polish | 224 | 2.21%, see rank | 7.69% | 3.24% |
| Portuguese | 14 | 0.14%, see rank | 0.08% | 0.47% |
| Russian | 13 | 0.13%, see rank | 1.07% | 1.01% |
| Scotch-Irish | 180 | 1.77%, see rank | 1.12% | 1.72% |
| Scottish | 317 | 3.12%, see rank | 1.26% | 1.92% |
| Subsaharan African | 0 | 0.00%, see rank | 0.63% | 0.91% |
| Swedish | 160 | 1.58%, see rank | 2.37% | 1.41% |
| Swiss | 53 | 0.52%, see rank | 0.33% | 0.33% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.31% |
| American | 928 | 9.14%, see rank | 4.61% | 6.28% |
| Welsh | 213 | 2.10%, see rank | 0.41% | 0.63% |
ACS 2005-2009 data
8,711 (90.12%) out of the total population of 9,666 reported first ancestry.
| Rochester Community Unit School District 3A | % of the Total Population | Illinois | U.S. | |
| Arab | 26 | 0.27%, see rank | 0.52% | 0.50% |
| Czech | 49 | 0.51%, see rank | 1.02% | 0.54% |
| Danish | 69 | 0.71%, see rank | 0.44% | 0.49% |
| Dutch | 346 | 3.58%, see rank | 1.61% | 1.68% |
| English | 1,424 | 14.73%, see rank | 6.71% | 9.29% |
| French | 614 | 6.35%, see rank | 2.51% | 3.90% |
| German | 3,593 | 37.17%, see rank | 21.16% | 16.89% |
| Greek | 31 | 0.32%, see rank | 0.85% | 0.45% |
| Hungarian | 91 | 0.94%, see rank | 0.45% | 0.52% |
| Irish | 1,778 | 18.39%, see rank | 13.14% | 12.01% |
| Italian | 701 | 7.25%, see rank | 6.45% | 5.91% |
| Norwegian | 80 | 0.83%, see rank | 1.38% | 1.55% |
| Polish | 242 | 2.50%, see rank | 7.85% | 3.32% |
| Portuguese | 37 | 0.38%, see rank | 0.07% | 0.48% |
| Russian | 17 | 0.18%, see rank | 1.11% | 1.04% |
| Scotch-Irish | 210 | 2.17%, see rank | 1.15% | 1.77% |
| Scottish | 298 | 3.08%, see rank | 1.31% | 1.97% |
| Subsaharan African | 0 | 0.00%, see rank | 0.62% | 0.88% |
| Swedish | 129 | 1.33%, see rank | 2.46% | 1.45% |
| Swiss | 51 | 0.53%, see rank | 0.33% | 0.34% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.32% |
| American | 811 | 8.39%, see rank | 4.55% | 6.43% |
| Welsh | 200 | 2.07%, see rank | 0.42% | 0.65% |
* 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.