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Foster City, CA Historical First Ancestry Data
ACS 2010-2014 data
29,739 (93.49%) out of the total population of 31,809 reported first ancestry.
| Foster City, CA | % of the Total Population | California | U.S. | |
| Arab | 881 | 2.77%, see rank | 0.72% | 0.56% |
| Czech | 34 | 0.11%, see rank | 0.22% | 0.47% |
| Danish | 241 | 0.76%, see rank | 0.46% | 0.42% |
| Dutch | 91 | 0.29%, see rank | 0.99% | 1.40% |
| English | 1,650 | 5.19%, see rank | 5.94% | 8.02% |
| French | 618 | 1.94%, see rank | 2.15% | 3.34% |
| German | 2,445 | 7.69%, see rank | 8.51% | 15.03% |
| Greek | 93 | 0.29%, see rank | 0.35% | 0.41% |
| Hungarian | 73 | 0.23%, see rank | 0.32% | 0.46% |
| Irish | 1,827 | 5.74%, see rank | 6.69% | 10.80% |
| Italian | 1,259 | 3.96%, see rank | 3.97% | 5.52% |
| Norwegian | 208 | 0.65%, see rank | 1.02% | 1.42% |
| Polish | 487 | 1.53%, see rank | 1.32% | 3.01% |
| Portuguese | 349 | 1.10%, see rank | 0.91% | 0.44% |
| Russian | 1,462 | 4.60%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 169 | 0.53%, see rank | 0.61% | 0.99% |
| Scottish | 275 | 0.86%, see rank | 1.34% | 1.72% |
| Subsaharan African | 28 | 0.09%, see rank | 0.69% | 0.95% |
| Swedish | 175 | 0.55%, see rank | 1.09% | 1.27% |
| Swiss | 112 | 0.35%, see rank | 0.27% | 0.30% |
| Ukrainian | 208 | 0.65%, see rank | 0.27% | 0.31% |
| American | 814 | 2.56%, see rank | 3.22% | 7.12% |
| Welsh | 161 | 0.51%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
29,256 (95.13%) out of the total population of 30,754 reported first ancestry.
| Foster City, CA | % of the Total Population | California | U.S. | |
| Arab | 636 | 2.07%, see rank | 0.70% | 0.53% |
| Czech | 71 | 0.23%, see rank | 0.24% | 0.50% |
| Danish | 166 | 0.54%, see rank | 0.50% | 0.45% |
| Dutch | 203 | 0.66%, see rank | 1.08% | 1.51% |
| English | 1,706 | 5.55%, see rank | 6.39% | 8.53% |
| French | 859 | 2.79%, see rank | 2.28% | 3.54% |
| German | 2,347 | 7.63%, see rank | 9.10% | 15.79% |
| Greek | 126 | 0.41%, see rank | 0.35% | 0.42% |
| Hungarian | 46 | 0.15%, see rank | 0.34% | 0.48% |
| Irish | 1,914 | 6.22%, see rank | 7.13% | 11.36% |
| Italian | 1,657 | 5.39%, see rank | 4.08% | 5.66% |
| Norwegian | 309 | 1.00%, see rank | 1.06% | 1.46% |
| Polish | 546 | 1.78%, see rank | 1.35% | 3.13% |
| Portuguese | 277 | 0.90%, see rank | 0.96% | 0.46% |
| Russian | 1,280 | 4.16%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 129 | 0.42%, see rank | 0.67% | 1.07% |
| Scottish | 290 | 0.94%, see rank | 1.43% | 1.81% |
| Subsaharan African | 75 | 0.24%, see rank | 0.72% | 0.93% |
| Swedish | 240 | 0.78%, see rank | 1.16% | 1.34% |
| Swiss | 125 | 0.41%, see rank | 0.28% | 0.31% |
| Ukrainian | 203 | 0.66%, see rank | 0.26% | 0.31% |
| American | 567 | 1.84%, see rank | 2.78% | 6.72% |
| Welsh | 152 | 0.49%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
28,789 (96.78%) out of the total population of 29,746 reported first ancestry.
| Foster City, CA | % of the Total Population | California | U.S. | |
| Arab | 750 | 2.52%, see rank | 0.66% | 0.50% |
| Czech | 123 | 0.41%, see rank | 0.26% | 0.53% |
| Danish | 125 | 0.42%, see rank | 0.53% | 0.48% |
| Dutch | 237 | 0.80%, see rank | 1.15% | 1.63% |
| English | 1,677 | 5.64%, see rank | 6.77% | 9.02% |
| French | 874 | 2.94%, see rank | 2.44% | 3.77% |
| German | 2,923 | 9.83%, see rank | 9.60% | 16.51% |
| Greek | 175 | 0.59%, see rank | 0.38% | 0.44% |
| Hungarian | 28 | 0.09%, see rank | 0.36% | 0.51% |
| Irish | 1,818 | 6.11%, see rank | 7.50% | 11.76% |
| Italian | 1,693 | 5.69%, see rank | 4.21% | 5.78% |
| Norwegian | 324 | 1.09%, see rank | 1.10% | 1.51% |
| Polish | 649 | 2.18%, see rank | 1.41% | 3.24% |
| Portuguese | 243 | 0.82%, see rank | 1.02% | 0.47% |
| Russian | 1,168 | 3.93%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 211 | 0.71%, see rank | 1.19% | 1.72% |
| Scottish | 414 | 1.39%, see rank | 1.54% | 1.92% |
| Subsaharan African | 110 | 0.37%, see rank | 0.72% | 0.91% |
| Swedish | 352 | 1.18%, see rank | 1.25% | 1.41% |
| Swiss | 142 | 0.48%, see rank | 0.31% | 0.33% |
| Ukrainian | 173 | 0.58%, see rank | 0.26% | 0.31% |
| American | 286 | 0.96%, see rank | 2.43% | 6.28% |
| Welsh | 164 | 0.55%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
27,859 (97.08%) out of the total population of 28,696 reported first ancestry.
| Foster City, CA | % of the Total Population | California | U.S. | |
| Arab | 674 | 2.35%, see rank | 0.66% | 0.50% |
| Czech | 154 | 0.54%, see rank | 0.27% | 0.54% |
| Danish | 120 | 0.42%, see rank | 0.55% | 0.49% |
| Dutch | 238 | 0.83%, see rank | 1.19% | 1.68% |
| English | 1,740 | 6.06%, see rank | 7.02% | 9.29% |
| French | 973 | 3.39%, see rank | 2.56% | 3.90% |
| German | 2,942 | 10.25%, see rank | 9.93% | 16.89% |
| Greek | 135 | 0.47%, see rank | 0.38% | 0.45% |
| Hungarian | 44 | 0.15%, see rank | 0.37% | 0.52% |
| Irish | 2,020 | 7.04%, see rank | 7.79% | 12.01% |
| Italian | 1,697 | 5.91%, see rank | 4.33% | 5.91% |
| Norwegian | 388 | 1.35%, see rank | 1.14% | 1.55% |
| Polish | 566 | 1.97%, see rank | 1.45% | 3.32% |
| Portuguese | 209 | 0.73%, see rank | 1.05% | 0.48% |
| Russian | 1,242 | 4.33%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 192 | 0.67%, see rank | 1.23% | 1.77% |
| Scottish | 516 | 1.80%, see rank | 1.61% | 1.97% |
| Subsaharan African | 182 | 0.63%, see rank | 0.71% | 0.88% |
| Swedish | 473 | 1.65%, see rank | 1.28% | 1.45% |
| Swiss | 199 | 0.69%, see rank | 0.32% | 0.34% |
| Ukrainian | 82 | 0.29%, see rank | 0.27% | 0.32% |
| American | 324 | 1.13%, see rank | 2.66% | 6.43% |
| Welsh | 116 | 0.40%, see rank | 0.52% | 0.65% |
US Census 2000 data
26,174 (90.87%) out of the total population of 28,803 reported first ancestry.
| Foster City, CA | % of the Total Population | California | U.S. | |
| Arab | 485 | 1.68%, see rank | 0.50% | 0.36% |
| Czech | 44 | 0.15%, see rank | 0.14% | 0.27% |
| Danish | 116 | 0.40%, see rank | 0.38% | 0.30% |
| Dutch | 165 | 0.57%, see rank | 0.71% | 0.91% |
| English | 1,509 | 5.24%, see rank | 4.91% | 5.91% |
| French | 603 | 2.09%, see rank | 1.57% | 2.39% |
| German | 2,182 | 7.58%, see rank | 6.45% | 10.81% |
| Greek | 185 | 0.64%, see rank | 0.29% | 0.34% |
| Hungarian | 107 | 0.37%, see rank | 0.27% | 0.32% |
| Irish | 1,399 | 4.86%, see rank | 4.72% | 6.85% |
| Italian | 1,599 | 5.55%, see rank | 3.41% | 4.59% |
| Norwegian | 215 | 0.75%, see rank | 0.92% | 1.15% |
| Polish | 541 | 1.88%, see rank | 0.95% | 2.24% |
| Portuguese | 126 | 0.44%, see rank | 0.75% | 0.33% |
| Russian | 914 | 3.17%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 180 | 0.62%, see rank | 0.87% | 1.17% |
| Scottish | 394 | 1.37%, see rank | 1.00% | 1.12% |
| Subsaharan African | 168 | 0.58%, see rank | 0.51% | 0.61% |
| Swedish | 292 | 1.01%, see rank | 0.86% | 0.87% |
| Swiss | 144 | 0.50%, see rank | 0.21% | 0.19% |
| Ukrainian | 181 | 0.63%, see rank | 0.20% | 0.24% |
| American | 686 | 2.38%, see rank | 3.37% | 7.33% |
| Welsh | 85 | 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.