Waukesha County Historical First Ancestry Data
ACS 2010-2014 data
355,846 (90.66%) out of the total population of 392,511 reported first ancestry.
| Waukesha County | % of the Total Population | Wisconsin | U.S. | |
| Arab | 1,032 | 0.26%, see rank | 0.23% | 0.56% |
| Czech | 6,073 | 1.55%, see rank | 1.61% | 0.47% |
| Danish | 3,567 | 0.91%, see rank | 1.04% | 0.42% |
| Dutch | 7,629 | 1.94%, see rank | 2.51% | 1.40% |
| English | 26,386 | 6.72%, see rank | 5.83% | 8.02% |
| French | 17,100 | 4.36%, see rank | 4.24% | 3.34% |
| German | 193,490 | 49.30%, see rank | 41.77% | 15.03% |
| Greek | 2,796 | 0.71%, see rank | 0.28% | 0.41% |
| Hungarian | 3,163 | 0.81%, see rank | 0.41% | 0.46% |
| Irish | 51,756 | 13.19%, see rank | 11.03% | 10.80% |
| Italian | 22,851 | 5.82%, see rank | 3.48% | 5.52% |
| Norwegian | 20,820 | 5.30%, see rank | 7.74% | 1.42% |
| Polish | 52,779 | 13.45%, see rank | 8.91% | 3.01% |
| Portuguese | 197 | 0.05%, see rank | 0.05% | 0.44% |
| Russian | 3,406 | 0.87%, see rank | 0.65% | 0.92% |
| Scotch-Irish | 1,725 | 0.44%, see rank | 0.43% | 0.99% |
| Scottish | 5,398 | 1.38%, see rank | 1.07% | 1.72% |
| Subsaharan African | 512 | 0.13%, see rank | 0.47% | 0.95% |
| Swedish | 9,167 | 2.34%, see rank | 2.56% | 1.27% |
| Swiss | 3,710 | 0.95%, see rank | 1.03% | 0.30% |
| Ukrainian | 753 | 0.19%, see rank | 0.17% | 0.31% |
| American | 13,384 | 3.41%, see rank | 3.75% | 7.12% |
| Welsh | 3,009 | 0.77%, see rank | 0.48% | 0.57% |
ACS 2008-2012 data
361,075 (92.65%) out of the total population of 389,740 reported first ancestry.
| Waukesha County | % of the Total Population | Wisconsin | U.S. | |
| Arab | 806 | 0.21%, see rank | 0.21% | 0.53% |
| Czech | 5,790 | 1.49%, see rank | 1.67% | 0.50% |
| Danish | 3,789 | 0.97%, see rank | 1.12% | 0.45% |
| Dutch | 7,431 | 1.91%, see rank | 2.63% | 1.51% |
| English | 27,582 | 7.08%, see rank | 6.23% | 8.53% |
| French | 17,348 | 4.45%, see rank | 4.51% | 3.54% |
| German | 199,450 | 51.18%, see rank | 43.10% | 15.79% |
| Greek | 3,605 | 0.92%, see rank | 0.33% | 0.42% |
| Hungarian | 3,313 | 0.85%, see rank | 0.45% | 0.48% |
| Irish | 55,957 | 14.36%, see rank | 11.45% | 11.36% |
| Italian | 23,584 | 6.05%, see rank | 3.56% | 5.66% |
| Norwegian | 20,139 | 5.17%, see rank | 7.92% | 1.46% |
| Polish | 54,704 | 14.04%, see rank | 9.20% | 3.13% |
| Portuguese | 160 | 0.04%, see rank | 0.05% | 0.46% |
| Russian | 2,926 | 0.75%, see rank | 0.69% | 0.97% |
| Scotch-Irish | 1,886 | 0.48%, see rank | 0.44% | 1.07% |
| Scottish | 5,990 | 1.54%, see rank | 1.13% | 1.81% |
| Subsaharan African | 535 | 0.14%, see rank | 0.47% | 0.93% |
| Swedish | 9,417 | 2.42%, see rank | 2.66% | 1.34% |
| Swiss | 3,578 | 0.92%, see rank | 1.04% | 0.31% |
| Ukrainian | 791 | 0.20%, see rank | 0.17% | 0.31% |
| American | 11,530 | 2.96%, see rank | 3.40% | 6.72% |
| Welsh | 2,988 | 0.77%, see rank | 0.51% | 0.60% |
ACS 2006-2010 data
362,386 (93.85%) out of the total population of 386,130 reported first ancestry.
| Waukesha County | % of the Total Population | Wisconsin | U.S. | |
| Arab | 810 | 0.21%, see rank | 0.18% | 0.50% |
| Czech | 5,933 | 1.54%, see rank | 1.78% | 0.53% |
| Danish | 4,442 | 1.15%, see rank | 1.21% | 0.48% |
| Dutch | 6,718 | 1.74%, see rank | 2.72% | 1.63% |
| English | 29,405 | 7.62%, see rank | 6.59% | 9.02% |
| French | 17,460 | 4.52%, see rank | 4.90% | 3.77% |
| German | 203,365 | 52.67%, see rank | 44.47% | 16.51% |
| Greek | 3,622 | 0.94%, see rank | 0.34% | 0.44% |
| Hungarian | 3,972 | 1.03%, see rank | 0.46% | 0.51% |
| Irish | 56,830 | 14.72%, see rank | 11.72% | 11.76% |
| Italian | 23,445 | 6.07%, see rank | 3.57% | 5.78% |
| Norwegian | 21,500 | 5.57%, see rank | 8.27% | 1.51% |
| Polish | 56,234 | 14.56%, see rank | 9.55% | 3.24% |
| Portuguese | 190 | 0.05%, see rank | 0.05% | 0.47% |
| Russian | 3,125 | 0.81%, see rank | 0.74% | 1.01% |
| Scotch-Irish | 3,647 | 0.94%, see rank | 0.85% | 1.72% |
| Scottish | 5,737 | 1.49%, see rank | 1.14% | 1.92% |
| Subsaharan African | 507 | 0.13%, see rank | 0.45% | 0.91% |
| Swedish | 9,851 | 2.55%, see rank | 2.81% | 1.41% |
| Swiss | 3,473 | 0.90%, see rank | 1.07% | 0.33% |
| Ukrainian | 826 | 0.21%, see rank | 0.17% | 0.31% |
| American | 9,852 | 2.55%, see rank | 2.98% | 6.28% |
| Welsh | 2,770 | 0.72%, see rank | 0.50% | 0.63% |
ACS 2005-2009 data
356,012 (93.97%) out of the total population of 378,848 reported first ancestry.
| Waukesha County | % of the Total Population | Wisconsin | U.S. | |
| Arab | 669 | 0.18%, see rank | 0.19% | 0.50% |
| Czech | 6,608 | 1.74%, see rank | 1.85% | 0.54% |
| Danish | 4,549 | 1.20%, see rank | 1.24% | 0.49% |
| Dutch | 6,809 | 1.80%, see rank | 2.82% | 1.68% |
| English | 29,115 | 7.69%, see rank | 6.77% | 9.29% |
| French | 17,640 | 4.66%, see rank | 5.10% | 3.90% |
| German | 201,019 | 53.06%, see rank | 45.09% | 16.89% |
| Greek | 3,309 | 0.87%, see rank | 0.34% | 0.45% |
| Hungarian | 3,741 | 0.99%, see rank | 0.49% | 0.52% |
| Irish | 55,133 | 14.55%, see rank | 11.85% | 12.01% |
| Italian | 21,887 | 5.78%, see rank | 3.55% | 5.91% |
| Norwegian | 21,688 | 5.72%, see rank | 8.50% | 1.55% |
| Polish | 54,511 | 14.39%, see rank | 9.76% | 3.32% |
| Portuguese | 180 | 0.05%, see rank | 0.05% | 0.48% |
| Russian | 2,761 | 0.73%, see rank | 0.75% | 1.04% |
| Scotch-Irish | 3,664 | 0.97%, see rank | 0.86% | 1.77% |
| Scottish | 5,706 | 1.51%, see rank | 1.19% | 1.97% |
| Subsaharan African | 657 | 0.17%, see rank | 0.38% | 0.88% |
| Swedish | 9,878 | 2.61%, see rank | 2.90% | 1.45% |
| Swiss | 3,563 | 0.94%, see rank | 1.07% | 0.34% |
| Ukrainian | 717 | 0.19%, see rank | 0.17% | 0.32% |
| American | 9,852 | 2.60%, see rank | 2.98% | 6.43% |
| Welsh | 3,028 | 0.80%, see rank | 0.52% | 0.65% |
US Census 2000 data
314,497 (87.17%) out of the total population of 360,767 reported first ancestry.
| Waukesha County | % of the Total Population | Wisconsin | U.S. | |
| Arab | 342 | 0.09%, see rank | 0.13% | 0.36% |
| Czech | 2,711 | 0.75%, see rank | 0.94% | 0.27% |
| Danish | 2,001 | 0.55%, see rank | 0.71% | 0.30% |
| Dutch | 3,232 | 0.90%, see rank | 1.51% | 0.91% |
| English | 14,661 | 4.06%, see rank | 3.44% | 5.91% |
| French | 7,861 | 2.18%, see rank | 2.55% | 2.39% |
| German | 140,073 | 38.83%, see rank | 33.15% | 10.81% |
| Greek | 1,641 | 0.45%, see rank | 0.22% | 0.34% |
| Hungarian | 1,616 | 0.45%, see rank | 0.25% | 0.32% |
| Irish | 24,281 | 6.73%, see rank | 5.56% | 6.85% |
| Italian | 15,346 | 4.25%, see rank | 2.42% | 4.59% |
| Norwegian | 11,771 | 3.26%, see rank | 5.92% | 1.15% |
| Polish | 28,890 | 8.01%, see rank | 6.08% | 2.24% |
| Portuguese | 227 | 0.06%, see rank | 0.03% | 0.33% |
| Russian | 1,136 | 0.31%, see rank | 0.33% | 0.68% |
| Scotch-Irish | 1,831 | 0.51%, see rank | 0.45% | 1.17% |
| Scottish | 2,205 | 0.61%, see rank | 0.55% | 1.12% |
| Subsaharan African | 258 | 0.07%, see rank | 0.24% | 0.61% |
| Swedish | 5,018 | 1.39%, see rank | 1.54% | 0.87% |
| Swiss | 1,560 | 0.43%, see rank | 0.59% | 0.19% |
| Ukrainian | 419 | 0.12%, see rank | 0.10% | 0.24% |
| American | 12,461 | 3.45%, see rank | 3.53% | 7.33% |
| Welsh | 1,355 | 0.38%, see rank | 0.23% | 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.