Riverside County Historical First Ancestry Data
ACS 2010-2014 data
2,058,911 (90.82%) out of the total population of 2,266,899 reported first ancestry.
| Riverside County | % of the Total Population | California | U.S. | |
| Arab | 14,542 | 0.64%, see rank | 0.72% | 0.56% |
| Czech | 4,326 | 0.19%, see rank | 0.22% | 0.47% |
| Danish | 9,637 | 0.43%, see rank | 0.46% | 0.42% |
| Dutch | 24,994 | 1.10%, see rank | 0.99% | 1.40% |
| English | 139,506 | 6.15%, see rank | 5.94% | 8.02% |
| French | 55,467 | 2.45%, see rank | 2.15% | 3.34% |
| German | 207,599 | 9.16%, see rank | 8.51% | 15.03% |
| Greek | 6,529 | 0.29%, see rank | 0.35% | 0.41% |
| Hungarian | 7,611 | 0.34%, see rank | 0.32% | 0.46% |
| Irish | 149,611 | 6.60%, see rank | 6.69% | 10.80% |
| Italian | 82,699 | 3.65%, see rank | 3.97% | 5.52% |
| Norwegian | 23,055 | 1.02%, see rank | 1.02% | 1.42% |
| Polish | 30,223 | 1.33%, see rank | 1.32% | 3.01% |
| Portuguese | 8,562 | 0.38%, see rank | 0.91% | 0.44% |
| Russian | 13,716 | 0.61%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 14,769 | 0.65%, see rank | 0.61% | 0.99% |
| Scottish | 29,660 | 1.31%, see rank | 1.34% | 1.72% |
| Subsaharan African | 12,882 | 0.57%, see rank | 0.69% | 0.95% |
| Swedish | 23,481 | 1.04%, see rank | 1.09% | 1.27% |
| Swiss | 4,042 | 0.18%, see rank | 0.27% | 0.30% |
| Ukrainian | 3,293 | 0.15%, see rank | 0.27% | 0.31% |
| American | 84,548 | 3.73%, see rank | 3.22% | 7.12% |
| Welsh | 10,151 | 0.45%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
2,022,890 (92.24%) out of the total population of 2,192,982 reported first ancestry.
| Riverside County | % of the Total Population | California | U.S. | |
| Arab | 13,381 | 0.61%, see rank | 0.70% | 0.53% |
| Czech | 5,002 | 0.23%, see rank | 0.24% | 0.50% |
| Danish | 9,603 | 0.44%, see rank | 0.50% | 0.45% |
| Dutch | 28,150 | 1.28%, see rank | 1.08% | 1.51% |
| English | 147,319 | 6.72%, see rank | 6.39% | 8.53% |
| French | 58,443 | 2.67%, see rank | 2.28% | 3.54% |
| German | 218,152 | 9.95%, see rank | 9.10% | 15.79% |
| Greek | 6,514 | 0.30%, see rank | 0.35% | 0.42% |
| Hungarian | 8,218 | 0.37%, see rank | 0.34% | 0.48% |
| Irish | 156,676 | 7.14%, see rank | 7.13% | 11.36% |
| Italian | 80,886 | 3.69%, see rank | 4.08% | 5.66% |
| Norwegian | 24,573 | 1.12%, see rank | 1.06% | 1.46% |
| Polish | 30,045 | 1.37%, see rank | 1.35% | 3.13% |
| Portuguese | 8,680 | 0.40%, see rank | 0.96% | 0.46% |
| Russian | 15,121 | 0.69%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 15,463 | 0.71%, see rank | 0.67% | 1.07% |
| Scottish | 29,402 | 1.34%, see rank | 1.43% | 1.81% |
| Subsaharan African | 11,722 | 0.53%, see rank | 0.72% | 0.93% |
| Swedish | 25,281 | 1.15%, see rank | 1.16% | 1.34% |
| Swiss | 3,995 | 0.18%, see rank | 0.28% | 0.31% |
| Ukrainian | 2,894 | 0.13%, see rank | 0.26% | 0.31% |
| American | 71,945 | 3.28%, see rank | 2.78% | 6.72% |
| Welsh | 10,608 | 0.48%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
1,970,232 (93.40%) out of the total population of 2,109,464 reported first ancestry.
| Riverside County | % of the Total Population | California | U.S. | |
| Arab | 11,607 | 0.55%, see rank | 0.66% | 0.50% |
| Czech | 5,028 | 0.24%, see rank | 0.26% | 0.53% |
| Danish | 9,948 | 0.47%, see rank | 0.53% | 0.48% |
| Dutch | 30,902 | 1.46%, see rank | 1.15% | 1.63% |
| English | 152,574 | 7.23%, see rank | 6.77% | 9.02% |
| French | 59,484 | 2.82%, see rank | 2.44% | 3.77% |
| German | 221,502 | 10.50%, see rank | 9.60% | 16.51% |
| Greek | 6,163 | 0.29%, see rank | 0.38% | 0.44% |
| Hungarian | 8,533 | 0.40%, see rank | 0.36% | 0.51% |
| Irish | 161,809 | 7.67%, see rank | 7.50% | 11.76% |
| Italian | 82,693 | 3.92%, see rank | 4.21% | 5.78% |
| Norwegian | 25,328 | 1.20%, see rank | 1.10% | 1.51% |
| Polish | 29,431 | 1.40%, see rank | 1.41% | 3.24% |
| Portuguese | 8,421 | 0.40%, see rank | 1.02% | 0.47% |
| Russian | 14,684 | 0.70%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 25,005 | 1.19%, see rank | 1.19% | 1.72% |
| Scottish | 30,351 | 1.44%, see rank | 1.54% | 1.92% |
| Subsaharan African | 10,563 | 0.50%, see rank | 0.72% | 0.91% |
| Swedish | 26,905 | 1.28%, see rank | 1.25% | 1.41% |
| Swiss | 4,031 | 0.19%, see rank | 0.31% | 0.33% |
| Ukrainian | 2,825 | 0.13%, see rank | 0.26% | 0.31% |
| American | 53,424 | 2.53%, see rank | 2.43% | 6.28% |
| Welsh | 10,024 | 0.48%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
1,912,131 (93.90%) out of the total population of 2,036,304 reported first ancestry.
| Riverside County | % of the Total Population | California | U.S. | |
| Arab | 11,284 | 0.55%, see rank | 0.66% | 0.50% |
| Czech | 5,135 | 0.25%, see rank | 0.27% | 0.54% |
| Danish | 10,305 | 0.51%, see rank | 0.55% | 0.49% |
| Dutch | 31,517 | 1.55%, see rank | 1.19% | 1.68% |
| English | 153,648 | 7.55%, see rank | 7.02% | 9.29% |
| French | 61,972 | 3.04%, see rank | 2.56% | 3.90% |
| German | 226,032 | 11.10%, see rank | 9.93% | 16.89% |
| Greek | 6,948 | 0.34%, see rank | 0.38% | 0.45% |
| Hungarian | 8,433 | 0.41%, see rank | 0.37% | 0.52% |
| Irish | 165,736 | 8.14%, see rank | 7.79% | 12.01% |
| Italian | 83,722 | 4.11%, see rank | 4.33% | 5.91% |
| Norwegian | 26,096 | 1.28%, see rank | 1.14% | 1.55% |
| Polish | 29,603 | 1.45%, see rank | 1.45% | 3.32% |
| Portuguese | 8,081 | 0.40%, see rank | 1.05% | 0.48% |
| Russian | 15,598 | 0.77%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 25,249 | 1.24%, see rank | 1.23% | 1.77% |
| Scottish | 30,815 | 1.51%, see rank | 1.61% | 1.97% |
| Subsaharan African | 9,790 | 0.48%, see rank | 0.71% | 0.88% |
| Swedish | 27,253 | 1.34%, see rank | 1.28% | 1.45% |
| Swiss | 3,933 | 0.19%, see rank | 0.32% | 0.34% |
| Ukrainian | 2,695 | 0.13%, see rank | 0.27% | 0.32% |
| American | 52,177 | 2.56%, see rank | 2.66% | 6.43% |
| Welsh | 10,470 | 0.51%, see rank | 0.52% | 0.65% |
US Census 2000 data
1,307,609 (84.61%) out of the total population of 1,545,387 reported first ancestry.
| Riverside County | % of the Total Population | California | U.S. | |
| Arab | 6,096 | 0.39%, see rank | 0.50% | 0.36% |
| Czech | 2,313 | 0.15%, see rank | 0.14% | 0.27% |
| Danish | 5,145 | 0.33%, see rank | 0.38% | 0.30% |
| Dutch | 14,957 | 0.97%, see rank | 0.71% | 0.91% |
| English | 89,838 | 5.81%, see rank | 4.91% | 5.91% |
| French | 30,730 | 1.99%, see rank | 1.57% | 2.39% |
| German | 121,016 | 7.83%, see rank | 6.45% | 10.81% |
| Greek | 3,494 | 0.23%, see rank | 0.29% | 0.34% |
| Hungarian | 4,349 | 0.28%, see rank | 0.27% | 0.32% |
| Irish | 79,135 | 5.12%, see rank | 4.72% | 6.85% |
| Italian | 49,428 | 3.20%, see rank | 3.41% | 4.59% |
| Norwegian | 16,163 | 1.05%, see rank | 0.92% | 1.15% |
| Polish | 16,475 | 1.07%, see rank | 0.95% | 2.24% |
| Portuguese | 3,908 | 0.25%, see rank | 0.75% | 0.33% |
| Russian | 7,691 | 0.50%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 15,741 | 1.02%, see rank | 0.87% | 1.17% |
| Scottish | 16,166 | 1.05%, see rank | 1.00% | 1.12% |
| Subsaharan African | 5,541 | 0.36%, see rank | 0.51% | 0.61% |
| Swedish | 13,692 | 0.89%, see rank | 0.86% | 0.87% |
| Swiss | 2,099 | 0.14%, see rank | 0.21% | 0.19% |
| Ukrainian | 1,453 | 0.09%, see rank | 0.20% | 0.24% |
| American | 65,198 | 4.22%, see rank | 3.37% | 7.33% |
| Welsh | 4,592 | 0.30%, see rank | 0.27% | 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.