Naperville, IL Historical First Ancestry Data
ACS 2010-2014 data
131,433 (91.20%) out of the total population of 144,108 reported first ancestry.
| Naperville, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 1,298 | 0.90%, see rank | 0.71% | 0.56% |
| Czech | 2,973 | 2.06%, see rank | 0.92% | 0.47% |
| Danish | 499 | 0.35%, see rank | 0.38% | 0.42% |
| Dutch | 2,174 | 1.51%, see rank | 1.37% | 1.40% |
| English | 10,370 | 7.20%, see rank | 5.90% | 8.02% |
| French | 3,612 | 2.51%, see rank | 2.13% | 3.34% |
| German | 30,756 | 21.34%, see rank | 19.07% | 15.03% |
| Greek | 2,073 | 1.44%, see rank | 0.76% | 0.41% |
| Hungarian | 780 | 0.54%, see rank | 0.40% | 0.46% |
| Irish | 23,407 | 16.24%, see rank | 12.00% | 10.80% |
| Italian | 13,902 | 9.65%, see rank | 6.14% | 5.52% |
| Norwegian | 2,955 | 2.05%, see rank | 1.25% | 1.42% |
| Polish | 12,932 | 8.97%, see rank | 7.22% | 3.01% |
| Portuguese | 189 | 0.13%, see rank | 0.08% | 0.44% |
| Russian | 1,254 | 0.87%, see rank | 0.97% | 0.92% |
| Scotch-Irish | 936 | 0.65%, see rank | 0.59% | 0.99% |
| Scottish | 2,423 | 1.68%, see rank | 1.16% | 1.72% |
| Subsaharan African | 797 | 0.55%, see rank | 0.64% | 0.95% |
| Swedish | 4,049 | 2.81%, see rank | 2.13% | 1.27% |
| Swiss | 531 | 0.37%, see rank | 0.27% | 0.30% |
| Ukrainian | 694 | 0.48%, see rank | 0.40% | 0.31% |
| American | 4,603 | 3.19%, see rank | 5.00% | 7.12% |
| Welsh | 658 | 0.46%, see rank | 0.37% | 0.57% |
ACS 2008-2012 data
132,190 (93.00%) out of the total population of 142,143 reported first ancestry.
| Naperville, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 1,769 | 1.24%, see rank | 0.64% | 0.53% |
| Czech | 3,577 | 2.52%, see rank | 0.96% | 0.50% |
| Danish | 890 | 0.63%, see rank | 0.40% | 0.45% |
| Dutch | 2,146 | 1.51%, see rank | 1.46% | 1.51% |
| English | 10,813 | 7.61%, see rank | 6.23% | 8.53% |
| French | 3,811 | 2.68%, see rank | 2.26% | 3.54% |
| German | 31,584 | 22.22%, see rank | 19.89% | 15.79% |
| Greek | 2,003 | 1.41%, see rank | 0.78% | 0.42% |
| Hungarian | 625 | 0.44%, see rank | 0.41% | 0.48% |
| Irish | 23,626 | 16.62%, see rank | 12.52% | 11.36% |
| Italian | 14,685 | 10.33%, see rank | 6.29% | 5.66% |
| Norwegian | 2,936 | 2.07%, see rank | 1.30% | 1.46% |
| Polish | 14,230 | 10.01%, see rank | 7.47% | 3.13% |
| Portuguese | 208 | 0.15%, see rank | 0.08% | 0.46% |
| Russian | 1,803 | 1.27%, see rank | 1.03% | 0.97% |
| Scotch-Irish | 1,103 | 0.78%, see rank | 0.65% | 1.07% |
| Scottish | 2,555 | 1.80%, see rank | 1.20% | 1.81% |
| Subsaharan African | 791 | 0.56%, see rank | 0.62% | 0.93% |
| Swedish | 4,237 | 2.98%, see rank | 2.24% | 1.34% |
| Swiss | 670 | 0.47%, see rank | 0.29% | 0.31% |
| Ukrainian | 625 | 0.44%, see rank | 0.40% | 0.31% |
| American | 3,839 | 2.70%, see rank | 4.85% | 6.72% |
| Welsh | 575 | 0.40%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
132,326 (93.96%) out of the total population of 140,838 reported first ancestry.
| Naperville, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 1,693 | 1.20%, see rank | 0.55% | 0.50% |
| Czech | 3,566 | 2.53%, see rank | 1.01% | 0.53% |
| Danish | 1,049 | 0.74%, see rank | 0.42% | 0.48% |
| Dutch | 2,210 | 1.57%, see rank | 1.58% | 1.63% |
| English | 12,476 | 8.86%, see rank | 6.56% | 9.02% |
| French | 4,101 | 2.91%, see rank | 2.43% | 3.77% |
| German | 32,948 | 23.39%, see rank | 20.72% | 16.51% |
| Greek | 1,872 | 1.33%, see rank | 0.83% | 0.44% |
| Hungarian | 798 | 0.57%, see rank | 0.43% | 0.51% |
| Irish | 25,848 | 18.35%, see rank | 12.94% | 11.76% |
| Italian | 14,720 | 10.45%, see rank | 6.35% | 5.78% |
| Norwegian | 2,831 | 2.01%, see rank | 1.36% | 1.51% |
| Polish | 15,623 | 11.09%, see rank | 7.69% | 3.24% |
| Portuguese | 169 | 0.12%, see rank | 0.08% | 0.47% |
| Russian | 1,979 | 1.41%, see rank | 1.07% | 1.01% |
| Scotch-Irish | 2,240 | 1.59%, see rank | 1.12% | 1.72% |
| Scottish | 2,657 | 1.89%, see rank | 1.26% | 1.92% |
| Subsaharan African | 634 | 0.45%, see rank | 0.63% | 0.91% |
| Swedish | 4,354 | 3.09%, see rank | 2.37% | 1.41% |
| Swiss | 647 | 0.46%, see rank | 0.33% | 0.33% |
| Ukrainian | 915 | 0.65%, see rank | 0.40% | 0.31% |
| American | 3,568 | 2.53%, see rank | 4.61% | 6.28% |
| Welsh | 847 | 0.60%, see rank | 0.41% | 0.63% |
ACS 2005-2009 data
131,926 (93.14%) out of the total population of 141,644 reported first ancestry.
| Naperville, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 1,696 | 1.20%, see rank | 0.52% | 0.50% |
| Czech | 3,850 | 2.72%, see rank | 1.02% | 0.54% |
| Danish | 1,129 | 0.80%, see rank | 0.44% | 0.49% |
| Dutch | 2,680 | 1.89%, see rank | 1.61% | 1.68% |
| English | 12,406 | 8.76%, see rank | 6.71% | 9.29% |
| French | 4,257 | 3.01%, see rank | 2.51% | 3.90% |
| German | 34,294 | 24.21%, see rank | 21.16% | 16.89% |
| Greek | 1,606 | 1.13%, see rank | 0.85% | 0.45% |
| Hungarian | 750 | 0.53%, see rank | 0.45% | 0.52% |
| Irish | 25,090 | 17.71%, see rank | 13.14% | 12.01% |
| Italian | 14,444 | 10.20%, see rank | 6.45% | 5.91% |
| Norwegian | 2,685 | 1.90%, see rank | 1.38% | 1.55% |
| Polish | 15,651 | 11.05%, see rank | 7.85% | 3.32% |
| Portuguese | 119 | 0.08%, see rank | 0.07% | 0.48% |
| Russian | 1,952 | 1.38%, see rank | 1.11% | 1.04% |
| Scotch-Irish | 2,153 | 1.52%, see rank | 1.15% | 1.77% |
| Scottish | 2,672 | 1.89%, see rank | 1.31% | 1.97% |
| Subsaharan African | 480 | 0.34%, see rank | 0.62% | 0.88% |
| Swedish | 4,588 | 3.24%, see rank | 2.46% | 1.45% |
| Swiss | 741 | 0.52%, see rank | 0.33% | 0.34% |
| Ukrainian | 1,036 | 0.73%, see rank | 0.40% | 0.32% |
| American | 3,662 | 2.59%, see rank | 4.55% | 6.43% |
| Welsh | 809 | 0.57%, see rank | 0.42% | 0.65% |
US Census 2000 data
113,876 (88.72%) out of the total population of 128,358 reported first ancestry.
| Naperville, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 805 | 0.63%, see rank | 0.38% | 0.36% |
| Czech | 1,473 | 1.15%, see rank | 0.57% | 0.27% |
| Danish | 729 | 0.57%, see rank | 0.26% | 0.30% |
| Dutch | 1,719 | 1.34%, see rank | 0.90% | 0.91% |
| English | 7,497 | 5.84%, see rank | 4.12% | 5.91% |
| French | 2,194 | 1.71%, see rank | 1.34% | 2.39% |
| German | 22,623 | 17.62%, see rank | 13.82% | 10.81% |
| Greek | 1,343 | 1.05%, see rank | 0.65% | 0.34% |
| Hungarian | 542 | 0.42%, see rank | 0.27% | 0.32% |
| Irish | 14,538 | 11.33%, see rank | 7.62% | 6.85% |
| Italian | 10,837 | 8.44%, see rank | 4.81% | 4.59% |
| Norwegian | 1,869 | 1.46%, see rank | 0.96% | 1.15% |
| Polish | 9,618 | 7.49%, see rank | 5.68% | 2.24% |
| Portuguese | 134 | 0.10%, see rank | 0.04% | 0.33% |
| Russian | 1,021 | 0.80%, see rank | 0.72% | 0.68% |
| Scotch-Irish | 1,145 | 0.89%, see rank | 0.73% | 1.17% |
| Scottish | 1,278 | 1.00%, see rank | 0.73% | 1.12% |
| Subsaharan African | 250 | 0.19%, see rank | 0.57% | 0.61% |
| Swedish | 2,417 | 1.88%, see rank | 1.52% | 0.87% |
| Swiss | 378 | 0.29%, see rank | 0.17% | 0.19% |
| Ukrainian | 406 | 0.32%, see rank | 0.30% | 0.24% |
| American | 3,264 | 2.54%, see rank | 4.58% | 7.33% |
| Welsh | 449 | 0.35%, see rank | 0.20% | 0.31% |
* 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.