USA.com / California / Santa Clara County / Los Altos, CA / Population and Races / Historical First Ancestry Data
Los Altos, CA Historical First Ancestry Data
ACS 2010-2014 data
27,390 (92.03%) out of the total population of 29,762 reported first ancestry.
| Los Altos, CA | % of the Total Population | California | U.S. | |
| Arab | 250 | 0.84%, see rank | 0.72% | 0.56% |
| Czech | 132 | 0.44%, see rank | 0.22% | 0.47% |
| Danish | 485 | 1.63%, see rank | 0.46% | 0.42% |
| Dutch | 595 | 2.00%, see rank | 0.99% | 1.40% |
| English | 4,070 | 13.68%, see rank | 5.94% | 8.02% |
| French | 1,012 | 3.40%, see rank | 2.15% | 3.34% |
| German | 4,601 | 15.46%, see rank | 8.51% | 15.03% |
| Greek | 249 | 0.84%, see rank | 0.35% | 0.41% |
| Hungarian | 186 | 0.62%, see rank | 0.32% | 0.46% |
| Irish | 3,230 | 10.85%, see rank | 6.69% | 10.80% |
| Italian | 2,046 | 6.87%, see rank | 3.97% | 5.52% |
| Norwegian | 667 | 2.24%, see rank | 1.02% | 1.42% |
| Polish | 787 | 2.64%, see rank | 1.32% | 3.01% |
| Portuguese | 213 | 0.72%, see rank | 0.91% | 0.44% |
| Russian | 1,063 | 3.57%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 333 | 1.12%, see rank | 0.61% | 0.99% |
| Scottish | 869 | 2.92%, see rank | 1.34% | 1.72% |
| Subsaharan African | 39 | 0.13%, see rank | 0.69% | 0.95% |
| Swedish | 737 | 2.48%, see rank | 1.09% | 1.27% |
| Swiss | 339 | 1.14%, see rank | 0.27% | 0.30% |
| Ukrainian | 152 | 0.51%, see rank | 0.27% | 0.31% |
| American | 906 | 3.04%, see rank | 3.22% | 7.12% |
| Welsh | 180 | 0.60%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
27,616 (94.81%) out of the total population of 29,129 reported first ancestry.
| Los Altos, CA | % of the Total Population | California | U.S. | |
| Arab | 366 | 1.26%, see rank | 0.70% | 0.53% |
| Czech | 119 | 0.41%, see rank | 0.24% | 0.50% |
| Danish | 398 | 1.37%, see rank | 0.50% | 0.45% |
| Dutch | 464 | 1.59%, see rank | 1.08% | 1.51% |
| English | 4,059 | 13.93%, see rank | 6.39% | 8.53% |
| French | 916 | 3.14%, see rank | 2.28% | 3.54% |
| German | 4,555 | 15.64%, see rank | 9.10% | 15.79% |
| Greek | 202 | 0.69%, see rank | 0.35% | 0.42% |
| Hungarian | 224 | 0.77%, see rank | 0.34% | 0.48% |
| Irish | 2,986 | 10.25%, see rank | 7.13% | 11.36% |
| Italian | 2,062 | 7.08%, see rank | 4.08% | 5.66% |
| Norwegian | 526 | 1.81%, see rank | 1.06% | 1.46% |
| Polish | 841 | 2.89%, see rank | 1.35% | 3.13% |
| Portuguese | 318 | 1.09%, see rank | 0.96% | 0.46% |
| Russian | 1,011 | 3.47%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 331 | 1.14%, see rank | 0.67% | 1.07% |
| Scottish | 760 | 2.61%, see rank | 1.43% | 1.81% |
| Subsaharan African | 54 | 0.19%, see rank | 0.72% | 0.93% |
| Swedish | 600 | 2.06%, see rank | 1.16% | 1.34% |
| Swiss | 330 | 1.13%, see rank | 0.28% | 0.31% |
| Ukrainian | 216 | 0.74%, see rank | 0.26% | 0.31% |
| American | 787 | 2.70%, see rank | 2.78% | 6.72% |
| Welsh | 246 | 0.84%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
26,960 (94.90%) out of the total population of 28,409 reported first ancestry.
| Los Altos, CA | % of the Total Population | California | U.S. | |
| Arab | 299 | 1.05%, see rank | 0.66% | 0.50% |
| Czech | 207 | 0.73%, see rank | 0.26% | 0.53% |
| Danish | 347 | 1.22%, see rank | 0.53% | 0.48% |
| Dutch | 464 | 1.63%, see rank | 1.15% | 1.63% |
| English | 3,509 | 12.35%, see rank | 6.77% | 9.02% |
| French | 1,263 | 4.45%, see rank | 2.44% | 3.77% |
| German | 4,535 | 15.96%, see rank | 9.60% | 16.51% |
| Greek | 282 | 0.99%, see rank | 0.38% | 0.44% |
| Hungarian | 167 | 0.59%, see rank | 0.36% | 0.51% |
| Irish | 3,052 | 10.74%, see rank | 7.50% | 11.76% |
| Italian | 1,996 | 7.03%, see rank | 4.21% | 5.78% |
| Norwegian | 631 | 2.22%, see rank | 1.10% | 1.51% |
| Polish | 773 | 2.72%, see rank | 1.41% | 3.24% |
| Portuguese | 273 | 0.96%, see rank | 1.02% | 0.47% |
| Russian | 872 | 3.07%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 476 | 1.68%, see rank | 1.19% | 1.72% |
| Scottish | 877 | 3.09%, see rank | 1.54% | 1.92% |
| Subsaharan African | 23 | 0.08%, see rank | 0.72% | 0.91% |
| Swedish | 516 | 1.82%, see rank | 1.25% | 1.41% |
| Swiss | 310 | 1.09%, see rank | 0.31% | 0.33% |
| Ukrainian | 193 | 0.68%, see rank | 0.26% | 0.31% |
| American | 620 | 2.18%, see rank | 2.43% | 6.28% |
| Welsh | 274 | 0.96%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
26,328 (94.73%) out of the total population of 27,793 reported first ancestry.
| Los Altos, CA | % of the Total Population | California | U.S. | |
| Arab | 240 | 0.86%, see rank | 0.66% | 0.50% |
| Czech | 160 | 0.58%, see rank | 0.27% | 0.54% |
| Danish | 279 | 1.00%, see rank | 0.55% | 0.49% |
| Dutch | 442 | 1.59%, see rank | 1.19% | 1.68% |
| English | 3,287 | 11.83%, see rank | 7.02% | 9.29% |
| French | 1,253 | 4.51%, see rank | 2.56% | 3.90% |
| German | 4,114 | 14.80%, see rank | 9.93% | 16.89% |
| Greek | 224 | 0.81%, see rank | 0.38% | 0.45% |
| Hungarian | 219 | 0.79%, see rank | 0.37% | 0.52% |
| Irish | 2,889 | 10.39%, see rank | 7.79% | 12.01% |
| Italian | 1,724 | 6.20%, see rank | 4.33% | 5.91% |
| Norwegian | 754 | 2.71%, see rank | 1.14% | 1.55% |
| Polish | 668 | 2.40%, see rank | 1.45% | 3.32% |
| Portuguese | 322 | 1.16%, see rank | 1.05% | 0.48% |
| Russian | 796 | 2.86%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 494 | 1.78%, see rank | 1.23% | 1.77% |
| Scottish | 690 | 2.48%, see rank | 1.61% | 1.97% |
| Subsaharan African | 33 | 0.12%, see rank | 0.71% | 0.88% |
| Swedish | 484 | 1.74%, see rank | 1.28% | 1.45% |
| Swiss | 291 | 1.05%, see rank | 0.32% | 0.34% |
| Ukrainian | 240 | 0.86%, see rank | 0.27% | 0.32% |
| American | 683 | 2.46%, see rank | 2.66% | 6.43% |
| Welsh | 253 | 0.91%, see rank | 0.52% | 0.65% |
US Census 2000 data
23,846 (86.11%) out of the total population of 27,693 reported first ancestry.
| Los Altos, CA | % of the Total Population | California | U.S. | |
| Arab | 75 | 0.27%, see rank | 0.50% | 0.36% |
| Czech | 66 | 0.24%, see rank | 0.14% | 0.27% |
| Danish | 212 | 0.77%, see rank | 0.38% | 0.30% |
| Dutch | 359 | 1.30%, see rank | 0.71% | 0.91% |
| English | 2,755 | 9.95%, see rank | 4.91% | 5.91% |
| French | 714 | 2.58%, see rank | 1.57% | 2.39% |
| German | 2,761 | 9.97%, see rank | 6.45% | 10.81% |
| Greek | 87 | 0.31%, see rank | 0.29% | 0.34% |
| Hungarian | 116 | 0.42%, see rank | 0.27% | 0.32% |
| Irish | 1,978 | 7.14%, see rank | 4.72% | 6.85% |
| Italian | 1,534 | 5.54%, see rank | 3.41% | 4.59% |
| Norwegian | 477 | 1.72%, see rank | 0.92% | 1.15% |
| Polish | 511 | 1.85%, see rank | 0.95% | 2.24% |
| Portuguese | 151 | 0.55%, see rank | 0.75% | 0.33% |
| Russian | 597 | 2.16%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 391 | 1.41%, see rank | 0.87% | 1.17% |
| Scottish | 547 | 1.98%, see rank | 1.00% | 1.12% |
| Subsaharan African | 32 | 0.12%, see rank | 0.51% | 0.61% |
| Swedish | 480 | 1.73%, see rank | 0.86% | 0.87% |
| Swiss | 234 | 0.84%, see rank | 0.21% | 0.19% |
| Ukrainian | 75 | 0.27%, see rank | 0.20% | 0.24% |
| American | 1,119 | 4.04%, see rank | 3.37% | 7.33% |
| Welsh | 134 | 0.48%, 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.