Janesville Metro Area Historical First Ancestry Data
ACS 2010-2014 data
140,564 (87.60%) out of the total population of 160,465 reported first ancestry.
| Janesville Area | % of the Total Population | Wisconsin | U.S. | |
| Arab | 137 | 0.09%, see rank | 0.23% | 0.56% |
| Czech | 1,923 | 1.20%, see rank | 1.61% | 0.47% |
| Danish | 1,667 | 1.04%, see rank | 1.04% | 0.42% |
| Dutch | 2,930 | 1.83%, see rank | 2.51% | 1.40% |
| English | 15,189 | 9.47%, see rank | 5.83% | 8.02% |
| French | 5,323 | 3.32%, see rank | 4.24% | 3.34% |
| German | 61,473 | 38.31%, see rank | 41.77% | 15.03% |
| Greek | 303 | 0.19%, see rank | 0.28% | 0.41% |
| Hungarian | 397 | 0.25%, see rank | 0.41% | 0.46% |
| Irish | 25,000 | 15.58%, see rank | 11.03% | 10.80% |
| Italian | 5,320 | 3.32%, see rank | 3.48% | 5.52% |
| Norwegian | 20,297 | 12.65%, see rank | 7.74% | 1.42% |
| Polish | 6,340 | 3.95%, see rank | 8.91% | 3.01% |
| Portuguese | 199 | 0.12%, see rank | 0.05% | 0.44% |
| Russian | 739 | 0.46%, see rank | 0.65% | 0.92% |
| Scotch-Irish | 911 | 0.57%, see rank | 0.43% | 0.99% |
| Scottish | 2,113 | 1.32%, see rank | 1.07% | 1.72% |
| Subsaharan African | 2,128 | 1.33%, see rank | 0.47% | 0.95% |
| Swedish | 3,957 | 2.47%, see rank | 2.56% | 1.27% |
| Swiss | 3,407 | 2.12%, see rank | 1.03% | 0.30% |
| Ukrainian | 240 | 0.15%, see rank | 0.17% | 0.31% |
| American | 7,507 | 4.68%, see rank | 3.75% | 7.12% |
| Welsh | 1,051 | 0.65%, see rank | 0.48% | 0.57% |
ACS 2008-2012 data
143,845 (89.70%) out of the total population of 160,356 reported first ancestry.
| Janesville Area | % of the Total Population | Wisconsin | U.S. | |
| Arab | 208 | 0.13%, see rank | 0.21% | 0.53% |
| Czech | 1,651 | 1.03%, see rank | 1.67% | 0.50% |
| Danish | 1,859 | 1.16%, see rank | 1.12% | 0.45% |
| Dutch | 3,000 | 1.87%, see rank | 2.63% | 1.51% |
| English | 16,369 | 10.21%, see rank | 6.23% | 8.53% |
| French | 5,840 | 3.64%, see rank | 4.51% | 3.54% |
| German | 63,321 | 39.49%, see rank | 43.10% | 15.79% |
| Greek | 249 | 0.16%, see rank | 0.33% | 0.42% |
| Hungarian | 342 | 0.21%, see rank | 0.45% | 0.48% |
| Irish | 25,168 | 15.70%, see rank | 11.45% | 11.36% |
| Italian | 5,318 | 3.32%, see rank | 3.56% | 5.66% |
| Norwegian | 21,433 | 13.37%, see rank | 7.92% | 1.46% |
| Polish | 6,602 | 4.12%, see rank | 9.20% | 3.13% |
| Portuguese | 212 | 0.13%, see rank | 0.05% | 0.46% |
| Russian | 838 | 0.52%, see rank | 0.69% | 0.97% |
| Scotch-Irish | 879 | 0.55%, see rank | 0.44% | 1.07% |
| Scottish | 2,325 | 1.45%, see rank | 1.13% | 1.81% |
| Subsaharan African | 2,402 | 1.50%, see rank | 0.47% | 0.93% |
| Swedish | 4,333 | 2.70%, see rank | 2.66% | 1.34% |
| Swiss | 3,152 | 1.97%, see rank | 1.04% | 0.31% |
| Ukrainian | 184 | 0.11%, see rank | 0.17% | 0.31% |
| American | 7,168 | 4.47%, see rank | 3.40% | 6.72% |
| Welsh | 1,013 | 0.63%, see rank | 0.51% | 0.60% |
ACS 2006-2010 data
146,040 (91.30%) out of the total population of 159,964 reported first ancestry.
| Janesville Area | % of the Total Population | Wisconsin | U.S. | |
| Arab | 204 | 0.13%, see rank | 0.18% | 0.50% |
| Czech | 1,589 | 0.99%, see rank | 1.78% | 0.53% |
| Danish | 2,111 | 1.32%, see rank | 1.21% | 0.48% |
| Dutch | 3,371 | 2.11%, see rank | 2.72% | 1.63% |
| English | 17,472 | 10.92%, see rank | 6.59% | 9.02% |
| French | 6,692 | 4.18%, see rank | 4.90% | 3.77% |
| German | 63,078 | 39.43%, see rank | 44.47% | 16.51% |
| Greek | 309 | 0.19%, see rank | 0.34% | 0.44% |
| Hungarian | 459 | 0.29%, see rank | 0.46% | 0.51% |
| Irish | 24,843 | 15.53%, see rank | 11.72% | 11.76% |
| Italian | 5,017 | 3.14%, see rank | 3.57% | 5.78% |
| Norwegian | 21,879 | 13.68%, see rank | 8.27% | 1.51% |
| Polish | 7,118 | 4.45%, see rank | 9.55% | 3.24% |
| Portuguese | 170 | 0.11%, see rank | 0.05% | 0.47% |
| Russian | 967 | 0.60%, see rank | 0.74% | 1.01% |
| Scotch-Irish | 1,780 | 1.11%, see rank | 0.85% | 1.72% |
| Scottish | 2,275 | 1.42%, see rank | 1.14% | 1.92% |
| Subsaharan African | 2,703 | 1.69%, see rank | 0.45% | 0.91% |
| Swedish | 4,562 | 2.85%, see rank | 2.81% | 1.41% |
| Swiss | 3,159 | 1.97%, see rank | 1.07% | 0.33% |
| Ukrainian | 157 | 0.10%, see rank | 0.17% | 0.31% |
| American | 7,467 | 4.67%, see rank | 2.98% | 6.28% |
| Welsh | 1,047 | 0.65%, see rank | 0.50% | 0.63% |
ACS 2005-2009 data
145,484 (91.60%) out of the total population of 158,829 reported first ancestry.
| Janesville Area | % of the Total Population | Wisconsin | U.S. | |
| Arab | 230 | 0.14%, see rank | 0.19% | 0.50% |
| Czech | 1,440 | 0.91%, see rank | 1.85% | 0.54% |
| Danish | 2,214 | 1.39%, see rank | 1.24% | 0.49% |
| Dutch | 3,858 | 2.43%, see rank | 2.82% | 1.68% |
| English | 18,000 | 11.33%, see rank | 6.77% | 9.29% |
| French | 7,117 | 4.48%, see rank | 5.10% | 3.90% |
| German | 63,171 | 39.77%, see rank | 45.09% | 16.89% |
| Greek | 346 | 0.22%, see rank | 0.34% | 0.45% |
| Hungarian | 441 | 0.28%, see rank | 0.49% | 0.52% |
| Irish | 23,571 | 14.84%, see rank | 11.85% | 12.01% |
| Italian | 4,444 | 2.80%, see rank | 3.55% | 5.91% |
| Norwegian | 22,447 | 14.13%, see rank | 8.50% | 1.55% |
| Polish | 7,416 | 4.67%, see rank | 9.76% | 3.32% |
| Portuguese | 37 | 0.02%, see rank | 0.05% | 0.48% |
| Russian | 844 | 0.53%, see rank | 0.75% | 1.04% |
| Scotch-Irish | 1,736 | 1.09%, see rank | 0.86% | 1.77% |
| Scottish | 2,561 | 1.61%, see rank | 1.19% | 1.97% |
| Subsaharan African | 1,460 | 0.92%, see rank | 0.38% | 0.88% |
| Swedish | 4,305 | 2.71%, see rank | 2.90% | 1.45% |
| Swiss | 3,199 | 2.01%, see rank | 1.07% | 0.34% |
| Ukrainian | 119 | 0.07%, see rank | 0.17% | 0.32% |
| American | 8,170 | 5.14%, see rank | 2.98% | 6.43% |
| Welsh | 1,010 | 0.64%, see rank | 0.52% | 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.