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Simi Valley, CA Historical First Ancestry Data
ACS 2010-2014 data
113,529 (90.32%) out of the total population of 125,699 reported first ancestry.
| Simi Valley, CA | % of the Total Population | California | U.S. | |
| Arab | 1,519 | 1.21%, see rank | 0.72% | 0.56% |
| Czech | 476 | 0.38%, see rank | 0.22% | 0.47% |
| Danish | 1,013 | 0.81%, see rank | 0.46% | 0.42% |
| Dutch | 1,637 | 1.30%, see rank | 0.99% | 1.40% |
| English | 12,006 | 9.55%, see rank | 5.94% | 8.02% |
| French | 4,330 | 3.44%, see rank | 2.15% | 3.34% |
| German | 18,431 | 14.66%, see rank | 8.51% | 15.03% |
| Greek | 711 | 0.57%, see rank | 0.35% | 0.41% |
| Hungarian | 1,115 | 0.89%, see rank | 0.32% | 0.46% |
| Irish | 14,494 | 11.53%, see rank | 6.69% | 10.80% |
| Italian | 9,527 | 7.58%, see rank | 3.97% | 5.52% |
| Norwegian | 2,137 | 1.70%, see rank | 1.02% | 1.42% |
| Polish | 3,563 | 2.83%, see rank | 1.32% | 3.01% |
| Portuguese | 412 | 0.33%, see rank | 0.91% | 0.44% |
| Russian | 3,338 | 2.66%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 1,008 | 0.80%, see rank | 0.61% | 0.99% |
| Scottish | 2,553 | 2.03%, see rank | 1.34% | 1.72% |
| Subsaharan African | 313 | 0.25%, see rank | 0.69% | 0.95% |
| Swedish | 2,064 | 1.64%, see rank | 1.09% | 1.27% |
| Swiss | 161 | 0.13%, see rank | 0.27% | 0.30% |
| Ukrainian | 354 | 0.28%, see rank | 0.27% | 0.31% |
| American | 7,745 | 6.16%, see rank | 3.22% | 7.12% |
| Welsh | 1,232 | 0.98%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
114,943 (92.74%) out of the total population of 123,942 reported first ancestry.
| Simi Valley, CA | % of the Total Population | California | U.S. | |
| Arab | 1,336 | 1.08%, see rank | 0.70% | 0.53% |
| Czech | 448 | 0.36%, see rank | 0.24% | 0.50% |
| Danish | 893 | 0.72%, see rank | 0.50% | 0.45% |
| Dutch | 1,913 | 1.54%, see rank | 1.08% | 1.51% |
| English | 13,066 | 10.54%, see rank | 6.39% | 8.53% |
| French | 4,376 | 3.53%, see rank | 2.28% | 3.54% |
| German | 18,128 | 14.63%, see rank | 9.10% | 15.79% |
| Greek | 562 | 0.45%, see rank | 0.35% | 0.42% |
| Hungarian | 996 | 0.80%, see rank | 0.34% | 0.48% |
| Irish | 13,956 | 11.26%, see rank | 7.13% | 11.36% |
| Italian | 9,887 | 7.98%, see rank | 4.08% | 5.66% |
| Norwegian | 2,283 | 1.84%, see rank | 1.06% | 1.46% |
| Polish | 3,289 | 2.65%, see rank | 1.35% | 3.13% |
| Portuguese | 515 | 0.42%, see rank | 0.96% | 0.46% |
| Russian | 2,635 | 2.13%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 1,117 | 0.90%, see rank | 0.67% | 1.07% |
| Scottish | 2,474 | 2.00%, see rank | 1.43% | 1.81% |
| Subsaharan African | 429 | 0.35%, see rank | 0.72% | 0.93% |
| Swedish | 2,470 | 1.99%, see rank | 1.16% | 1.34% |
| Swiss | 202 | 0.16%, see rank | 0.28% | 0.31% |
| Ukrainian | 285 | 0.23%, see rank | 0.26% | 0.31% |
| American | 8,399 | 6.78%, see rank | 2.78% | 6.72% |
| Welsh | 839 | 0.68%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
113,595 (93.37%) out of the total population of 121,662 reported first ancestry.
| Simi Valley, CA | % of the Total Population | California | U.S. | |
| Arab | 1,214 | 1.00%, see rank | 0.66% | 0.50% |
| Czech | 512 | 0.42%, see rank | 0.26% | 0.53% |
| Danish | 922 | 0.76%, see rank | 0.53% | 0.48% |
| Dutch | 2,067 | 1.70%, see rank | 1.15% | 1.63% |
| English | 12,807 | 10.53%, see rank | 6.77% | 9.02% |
| French | 4,418 | 3.63%, see rank | 2.44% | 3.77% |
| German | 17,975 | 14.77%, see rank | 9.60% | 16.51% |
| Greek | 720 | 0.59%, see rank | 0.38% | 0.44% |
| Hungarian | 785 | 0.65%, see rank | 0.36% | 0.51% |
| Irish | 13,019 | 10.70%, see rank | 7.50% | 11.76% |
| Italian | 8,705 | 7.16%, see rank | 4.21% | 5.78% |
| Norwegian | 2,034 | 1.67%, see rank | 1.10% | 1.51% |
| Polish | 3,350 | 2.75%, see rank | 1.41% | 3.24% |
| Portuguese | 483 | 0.40%, see rank | 1.02% | 0.47% |
| Russian | 2,408 | 1.98%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 2,020 | 1.66%, see rank | 1.19% | 1.72% |
| Scottish | 2,221 | 1.83%, see rank | 1.54% | 1.92% |
| Subsaharan African | 360 | 0.30%, see rank | 0.72% | 0.91% |
| Swedish | 2,433 | 2.00%, see rank | 1.25% | 1.41% |
| Swiss | 287 | 0.24%, see rank | 0.31% | 0.33% |
| Ukrainian | 264 | 0.22%, see rank | 0.26% | 0.31% |
| American | 11,845 | 9.74%, see rank | 2.43% | 6.28% |
| Welsh | 899 | 0.74%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
112,517 (94.29%) out of the total population of 119,334 reported first ancestry.
| Simi Valley, CA | % of the Total Population | California | U.S. | |
| Arab | 851 | 0.71%, see rank | 0.66% | 0.50% |
| Czech | 466 | 0.39%, see rank | 0.27% | 0.54% |
| Danish | 742 | 0.62%, see rank | 0.55% | 0.49% |
| Dutch | 2,235 | 1.87%, see rank | 1.19% | 1.68% |
| English | 12,419 | 10.41%, see rank | 7.02% | 9.29% |
| French | 4,860 | 4.07%, see rank | 2.56% | 3.90% |
| German | 18,376 | 15.40%, see rank | 9.93% | 16.89% |
| Greek | 690 | 0.58%, see rank | 0.38% | 0.45% |
| Hungarian | 956 | 0.80%, see rank | 0.37% | 0.52% |
| Irish | 12,637 | 10.59%, see rank | 7.79% | 12.01% |
| Italian | 8,760 | 7.34%, see rank | 4.33% | 5.91% |
| Norwegian | 1,897 | 1.59%, see rank | 1.14% | 1.55% |
| Polish | 3,166 | 2.65%, see rank | 1.45% | 3.32% |
| Portuguese | 501 | 0.42%, see rank | 1.05% | 0.48% |
| Russian | 2,237 | 1.87%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 1,775 | 1.49%, see rank | 1.23% | 1.77% |
| Scottish | 2,307 | 1.93%, see rank | 1.61% | 1.97% |
| Subsaharan African | 304 | 0.25%, see rank | 0.71% | 0.88% |
| Swedish | 2,886 | 2.42%, see rank | 1.28% | 1.45% |
| Swiss | 335 | 0.28%, see rank | 0.32% | 0.34% |
| Ukrainian | 252 | 0.21%, see rank | 0.27% | 0.32% |
| American | 13,250 | 11.10%, see rank | 2.66% | 6.43% |
| Welsh | 801 | 0.67%, see rank | 0.52% | 0.65% |
US Census 2000 data
94,351 (84.73%) out of the total population of 111,351 reported first ancestry.
| Simi Valley, CA | % of the Total Population | California | U.S. | |
| Arab | 470 | 0.42%, see rank | 0.50% | 0.36% |
| Czech | 221 | 0.20%, see rank | 0.14% | 0.27% |
| Danish | 355 | 0.32%, see rank | 0.38% | 0.30% |
| Dutch | 1,385 | 1.24%, see rank | 0.71% | 0.91% |
| English | 8,390 | 7.53%, see rank | 4.91% | 5.91% |
| French | 2,646 | 2.38%, see rank | 1.57% | 2.39% |
| German | 12,153 | 10.91%, see rank | 6.45% | 10.81% |
| Greek | 499 | 0.45%, see rank | 0.29% | 0.34% |
| Hungarian | 778 | 0.70%, see rank | 0.27% | 0.32% |
| Irish | 8,539 | 7.67%, see rank | 4.72% | 6.85% |
| Italian | 7,838 | 7.04%, see rank | 3.41% | 4.59% |
| Norwegian | 1,754 | 1.58%, see rank | 0.92% | 1.15% |
| Polish | 2,105 | 1.89%, see rank | 0.95% | 2.24% |
| Portuguese | 284 | 0.26%, see rank | 0.75% | 0.33% |
| Russian | 1,598 | 1.44%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 1,313 | 1.18%, see rank | 0.87% | 1.17% |
| Scottish | 1,350 | 1.21%, see rank | 1.00% | 1.12% |
| Subsaharan African | 187 | 0.17%, see rank | 0.51% | 0.61% |
| Swedish | 1,555 | 1.40%, see rank | 0.86% | 0.87% |
| Swiss | 253 | 0.23%, see rank | 0.21% | 0.19% |
| Ukrainian | 227 | 0.20%, see rank | 0.20% | 0.24% |
| American | 5,589 | 5.02%, see rank | 3.37% | 7.33% |
| Welsh | 481 | 0.43%, 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.