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San Luis Obispo, CA Historical First Ancestry Data
ACS 2010-2014 data
40,720 (88.69%) out of the total population of 45,911 reported first ancestry.
| San Luis Obispo, CA | % of the Total Population | California | U.S. | |
| Arab | 255 | 0.56%, see rank | 0.72% | 0.56% |
| Czech | 189 | 0.41%, see rank | 0.22% | 0.47% |
| Danish | 635 | 1.38%, see rank | 0.46% | 0.42% |
| Dutch | 867 | 1.89%, see rank | 0.99% | 1.40% |
| English | 4,755 | 10.36%, see rank | 5.94% | 8.02% |
| French | 2,208 | 4.81%, see rank | 2.15% | 3.34% |
| German | 8,600 | 18.73%, see rank | 8.51% | 15.03% |
| Greek | 392 | 0.85%, see rank | 0.35% | 0.41% |
| Hungarian | 307 | 0.67%, see rank | 0.32% | 0.46% |
| Irish | 5,818 | 12.67%, see rank | 6.69% | 10.80% |
| Italian | 3,302 | 7.19%, see rank | 3.97% | 5.52% |
| Norwegian | 912 | 1.99%, see rank | 1.02% | 1.42% |
| Polish | 1,148 | 2.50%, see rank | 1.32% | 3.01% |
| Portuguese | 1,006 | 2.19%, see rank | 0.91% | 0.44% |
| Russian | 672 | 1.46%, see rank | 1.13% | 0.92% |
| Scotch-Irish | 480 | 1.05%, see rank | 0.61% | 0.99% |
| Scottish | 810 | 1.76%, see rank | 1.34% | 1.72% |
| Subsaharan African | 78 | 0.17%, see rank | 0.69% | 0.95% |
| Swedish | 1,268 | 2.76%, see rank | 1.09% | 1.27% |
| Swiss | 373 | 0.81%, see rank | 0.27% | 0.30% |
| Ukrainian | 176 | 0.38%, see rank | 0.27% | 0.31% |
| American | 1,077 | 2.35%, see rank | 3.22% | 7.12% |
| Welsh | 458 | 1.00%, see rank | 0.43% | 0.57% |
ACS 2008-2012 data
40,598 (89.56%) out of the total population of 45,328 reported first ancestry.
| San Luis Obispo, CA | % of the Total Population | California | U.S. | |
| Arab | 268 | 0.59%, see rank | 0.70% | 0.53% |
| Czech | 112 | 0.25%, see rank | 0.24% | 0.50% |
| Danish | 687 | 1.52%, see rank | 0.50% | 0.45% |
| Dutch | 715 | 1.58%, see rank | 1.08% | 1.51% |
| English | 5,439 | 12.00%, see rank | 6.39% | 8.53% |
| French | 2,007 | 4.43%, see rank | 2.28% | 3.54% |
| German | 7,789 | 17.18%, see rank | 9.10% | 15.79% |
| Greek | 361 | 0.80%, see rank | 0.35% | 0.42% |
| Hungarian | 365 | 0.81%, see rank | 0.34% | 0.48% |
| Irish | 5,752 | 12.69%, see rank | 7.13% | 11.36% |
| Italian | 3,009 | 6.64%, see rank | 4.08% | 5.66% |
| Norwegian | 1,094 | 2.41%, see rank | 1.06% | 1.46% |
| Polish | 1,076 | 2.37%, see rank | 1.35% | 3.13% |
| Portuguese | 1,099 | 2.42%, see rank | 0.96% | 0.46% |
| Russian | 620 | 1.37%, see rank | 1.18% | 0.97% |
| Scotch-Irish | 451 | 0.99%, see rank | 0.67% | 1.07% |
| Scottish | 1,157 | 2.55%, see rank | 1.43% | 1.81% |
| Subsaharan African | 118 | 0.26%, see rank | 0.72% | 0.93% |
| Swedish | 1,087 | 2.40%, see rank | 1.16% | 1.34% |
| Swiss | 465 | 1.03%, see rank | 0.28% | 0.31% |
| Ukrainian | 276 | 0.61%, see rank | 0.26% | 0.31% |
| American | 1,181 | 2.61%, see rank | 2.78% | 6.72% |
| Welsh | 517 | 1.14%, see rank | 0.46% | 0.60% |
ACS 2006-2010 data
40,798 (90.74%) out of the total population of 44,959 reported first ancestry.
| San Luis Obispo, CA | % of the Total Population | California | U.S. | |
| Arab | 289 | 0.64%, see rank | 0.66% | 0.50% |
| Czech | 281 | 0.63%, see rank | 0.26% | 0.53% |
| Danish | 589 | 1.31%, see rank | 0.53% | 0.48% |
| Dutch | 645 | 1.43%, see rank | 1.15% | 1.63% |
| English | 5,474 | 12.18%, see rank | 6.77% | 9.02% |
| French | 1,630 | 3.63%, see rank | 2.44% | 3.77% |
| German | 7,498 | 16.68%, see rank | 9.60% | 16.51% |
| Greek | 282 | 0.63%, see rank | 0.38% | 0.44% |
| Hungarian | 421 | 0.94%, see rank | 0.36% | 0.51% |
| Irish | 5,543 | 12.33%, see rank | 7.50% | 11.76% |
| Italian | 3,316 | 7.38%, see rank | 4.21% | 5.78% |
| Norwegian | 1,110 | 2.47%, see rank | 1.10% | 1.51% |
| Polish | 1,036 | 2.30%, see rank | 1.41% | 3.24% |
| Portuguese | 1,092 | 2.43%, see rank | 1.02% | 0.47% |
| Russian | 635 | 1.41%, see rank | 1.22% | 1.01% |
| Scotch-Irish | 930 | 2.07%, see rank | 1.19% | 1.72% |
| Scottish | 1,447 | 3.22%, see rank | 1.54% | 1.92% |
| Subsaharan African | 120 | 0.27%, see rank | 0.72% | 0.91% |
| Swedish | 1,392 | 3.10%, see rank | 1.25% | 1.41% |
| Swiss | 703 | 1.56%, see rank | 0.31% | 0.33% |
| Ukrainian | 216 | 0.48%, see rank | 0.26% | 0.31% |
| American | 1,263 | 2.81%, see rank | 2.43% | 6.28% |
| Welsh | 591 | 1.31%, see rank | 0.49% | 0.63% |
ACS 2005-2009 data
39,501 (90.25%) out of the total population of 43,766 reported first ancestry.
| San Luis Obispo, CA | % of the Total Population | California | U.S. | |
| Arab | 201 | 0.46%, see rank | 0.66% | 0.50% |
| Czech | 271 | 0.62%, see rank | 0.27% | 0.54% |
| Danish | 559 | 1.28%, see rank | 0.55% | 0.49% |
| Dutch | 673 | 1.54%, see rank | 1.19% | 1.68% |
| English | 5,719 | 13.07%, see rank | 7.02% | 9.29% |
| French | 1,817 | 4.15%, see rank | 2.56% | 3.90% |
| German | 7,459 | 17.04%, see rank | 9.93% | 16.89% |
| Greek | 201 | 0.46%, see rank | 0.38% | 0.45% |
| Hungarian | 452 | 1.03%, see rank | 0.37% | 0.52% |
| Irish | 5,614 | 12.83%, see rank | 7.79% | 12.01% |
| Italian | 3,279 | 7.49%, see rank | 4.33% | 5.91% |
| Norwegian | 1,232 | 2.81%, see rank | 1.14% | 1.55% |
| Polish | 1,127 | 2.58%, see rank | 1.45% | 3.32% |
| Portuguese | 967 | 2.21%, see rank | 1.05% | 0.48% |
| Russian | 583 | 1.33%, see rank | 1.25% | 1.04% |
| Scotch-Irish | 937 | 2.14%, see rank | 1.23% | 1.77% |
| Scottish | 1,390 | 3.18%, see rank | 1.61% | 1.97% |
| Subsaharan African | 95 | 0.22%, see rank | 0.71% | 0.88% |
| Swedish | 1,404 | 3.21%, see rank | 1.28% | 1.45% |
| Swiss | 626 | 1.43%, see rank | 0.32% | 0.34% |
| Ukrainian | 205 | 0.47%, see rank | 0.27% | 0.32% |
| American | 1,110 | 2.54%, see rank | 2.66% | 6.43% |
| Welsh | 538 | 1.23%, see rank | 0.52% | 0.65% |
US Census 2000 data
37,276 (84.38%) out of the total population of 44,174 reported first ancestry.
| San Luis Obispo, CA | % of the Total Population | California | U.S. | |
| Arab | 218 | 0.49%, see rank | 0.50% | 0.36% |
| Czech | 90 | 0.20%, see rank | 0.14% | 0.27% |
| Danish | 338 | 0.77%, see rank | 0.38% | 0.30% |
| Dutch | 607 | 1.37%, see rank | 0.71% | 0.91% |
| English | 3,652 | 8.27%, see rank | 4.91% | 5.91% |
| French | 1,241 | 2.81%, see rank | 1.57% | 2.39% |
| German | 5,095 | 11.53%, see rank | 6.45% | 10.81% |
| Greek | 113 | 0.26%, see rank | 0.29% | 0.34% |
| Hungarian | 128 | 0.29%, see rank | 0.27% | 0.32% |
| Irish | 3,627 | 8.21%, see rank | 4.72% | 6.85% |
| Italian | 2,506 | 5.67%, see rank | 3.41% | 4.59% |
| Norwegian | 873 | 1.98%, see rank | 0.92% | 1.15% |
| Polish | 480 | 1.09%, see rank | 0.95% | 2.24% |
| Portuguese | 805 | 1.82%, see rank | 0.75% | 0.33% |
| Russian | 415 | 0.94%, see rank | 0.90% | 0.68% |
| Scotch-Irish | 656 | 1.49%, see rank | 0.87% | 1.17% |
| Scottish | 988 | 2.24%, see rank | 1.00% | 1.12% |
| Subsaharan African | 180 | 0.41%, see rank | 0.51% | 0.61% |
| Swedish | 723 | 1.64%, see rank | 0.86% | 0.87% |
| Swiss | 467 | 1.06%, see rank | 0.21% | 0.19% |
| Ukrainian | 64 | 0.14%, see rank | 0.20% | 0.24% |
| American | 2,049 | 4.64%, see rank | 3.37% | 7.33% |
| Welsh | 248 | 0.56%, 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.