USA.com / California / Contra Costa County / Oakley, CA / 94561 / Population and Races / Historical First Ancestry Data
94561 Zip Code Historical First Ancestry Data
ACS 2010-2014 data
35,145 (91.33%) out of the total population of 38,481 reported first ancestry.
| 94561 Zip Code | % of the Total Population | California | U.S. | |
| Arab | 158 | 0.41%, see rank | 0.72% | 0.56% |
| Czech | 16 | 0.04%, see rank | 0.22% | 0.47% |
| Danish | 67 | 0.17%, see rank | 0.46% | 0.42% |
| Dutch | 345 | 0.90%, see rank | 0.99% | 1.40% |
| English | 1,870 | 4.86%, see rank | 5.94% | 8.02% |
| French | 1,002 | 2.60%, see rank | 2.15% | 3.34% |
| German | 4,051 | 10.53%, see rank | 8.51% | 15.03% |
| Greek | 119 | 0.31%, see rank | 0.35% | 0.41% |
| Hungarian | 89 | 0.23%, see rank | 0.32% | 0.46% |
| Irish | 2,605 | 6.77%, see rank | 6.69% | 10.80% |
| Italian | 1,694 | 4.40%, see rank | 3.97% | 5.52% |
| Norwegian | 409 | 1.06%, see rank | 1.02% | 1.42% |
| Polish | 411 | 1.07%, see rank | 1.32% | 3.01% |
| Portuguese | 1,877 | 4.88%, see rank | 0.91% | 0.44% |
| Russian | 160 | 0.42%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 89 | 0.23%, see rank | 0.61% | 0.99% |
| Scottish | 359 | 0.93%, see rank | 1.34% | 1.72% |
| Subsaharan African | 543 | 1.41%, see rank | 0.69% | 0.95% |
| Swedish | 419 | 1.09%, see rank | 1.09% | 1.27% |
| Swiss | 92 | 0.24%, see rank | 0.27% | 0.30% |
| Ukrainian | 14 | 0.04%, see rank | 0.27% | 0.31% |
| American | 1,156 | 3.00%, see rank | 3.22% | 7.12% |
| Welsh | 173 | 0.45%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
34,384 (93.16%) out of the total population of 36,908 reported first ancestry.
| 94561 Zip Code | % of the Total Population | California | U.S. | |
| Arab | 284 | 0.77%, see rank | 0.70% | 0.53% |
| Czech | 91 | 0.25%, see rank | 0.24% | 0.50% |
| Danish | 128 | 0.35%, see rank | 0.50% | 0.45% |
| Dutch | 410 | 1.11%, see rank | 1.08% | 1.51% |
| English | 1,761 | 4.77%, see rank | 6.39% | 8.53% |
| French | 986 | 2.67%, see rank | 2.28% | 3.54% |
| German | 4,195 | 11.37%, see rank | 9.10% | 15.79% |
| Greek | 365 | 0.99%, see rank | 0.35% | 0.42% |
| Hungarian | 115 | 0.31%, see rank | 0.34% | 0.48% |
| Irish | 3,259 | 8.83%, see rank | 7.13% | 11.36% |
| Italian | 1,561 | 4.23%, see rank | 4.08% | 5.66% |
| Norwegian | 532 | 1.44%, see rank | 1.06% | 1.46% |
| Polish | 508 | 1.38%, see rank | 1.35% | 3.13% |
| Portuguese | 1,521 | 4.12%, see rank | 0.96% | 0.46% |
| Russian | 153 | 0.41%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 135 | 0.37%, see rank | 0.67% | 1.07% |
| Scottish | 409 | 1.11%, see rank | 1.43% | 1.81% |
| Subsaharan African | 202 | 0.55%, see rank | 0.72% | 0.93% |
| Swedish | 285 | 0.77%, see rank | 1.16% | 1.34% |
| Swiss | 131 | 0.35%, see rank | 0.28% | 0.31% |
| Ukrainian | 0 | 0.00%, see rank | 0.26% | 0.31% |
| American | 845 | 2.29%, see rank | 2.78% | 6.72% |
| Welsh | 201 | 0.54%, see rank | 0.46% | 0.60% |
US Census 2000 data
22,733 (82.37%) out of the total population of 27,599 reported first ancestry.
| 94561 Zip Code | % of the Total Population | California | U.S. | |
| Arab | 52 | 0.19%, see rank | 0.50% | 0.36% |
| Czech | 32 | 0.12%, see rank | 0.14% | 0.27% |
| Danish | 132 | 0.48%, see rank | 0.38% | 0.30% |
| Dutch | 153 | 0.55%, see rank | 0.71% | 0.91% |
| English | 1,348 | 4.88%, see rank | 4.91% | 5.91% |
| French | 649 | 2.35%, see rank | 1.57% | 2.39% |
| German | 2,165 | 7.84%, see rank | 6.45% | 10.81% |
| Greek | 56 | 0.20%, see rank | 0.29% | 0.34% |
| Hungarian | 27 | 0.10%, see rank | 0.27% | 0.32% |
| Irish | 2,016 | 7.30%, see rank | 4.72% | 6.85% |
| Italian | 1,939 | 7.03%, see rank | 3.41% | 4.59% |
| Norwegian | 457 | 1.66%, see rank | 0.92% | 1.15% |
| Polish | 158 | 0.57%, see rank | 0.95% | 2.24% |
| Portuguese | 1,009 | 3.66%, see rank | 0.75% | 0.33% |
| Russian | 99 | 0.36%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 389 | 1.41%, see rank | 0.87% | 1.17% |
| Scottish | 310 | 1.12%, see rank | 1.00% | 1.12% |
| Subsaharan African | 14 | 0.05%, see rank | 0.51% | 0.61% |
| Swedish | 275 | 1.00%, see rank | 0.86% | 0.87% |
| Swiss | 92 | 0.33%, see rank | 0.21% | 0.19% |
| Ukrainian | 18 | 0.07%, see rank | 0.20% | 0.24% |
| American | 1,561 | 5.66%, see rank | 3.37% | 7.33% |
| Welsh | 117 | 0.42%, 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.