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Louisville, CO Historical First Ancestry Data
ACS 2010-2014 data
16,888 (88.09%) out of the total population of 19,171 reported first ancestry.
| Louisville, CO | % of the Total Population | Colorado | U.S. | |
| Arab | 17 | 0.09%, see rank | 0.39% | 0.56% |
| Czech | 301 | 1.57%, see rank | 0.70% | 0.47% |
| Danish | 127 | 0.66%, see rank | 0.82% | 0.42% |
| Dutch | 589 | 3.07%, see rank | 1.81% | 1.40% |
| English | 2,593 | 13.53%, see rank | 10.49% | 8.02% |
| French | 911 | 4.75%, see rank | 3.48% | 3.34% |
| German | 3,983 | 20.78%, see rank | 20.88% | 15.03% |
| Greek | 87 | 0.45%, see rank | 0.38% | 0.41% |
| Hungarian | 237 | 1.24%, see rank | 0.39% | 0.46% |
| Irish | 2,672 | 13.94%, see rank | 12.04% | 10.80% |
| Italian | 1,512 | 7.89%, see rank | 5.10% | 5.52% |
| Norwegian | 698 | 3.64%, see rank | 2.18% | 1.42% |
| Polish | 871 | 4.54%, see rank | 2.51% | 3.01% |
| Portuguese | 44 | 0.23%, see rank | 0.21% | 0.44% |
| Russian | 246 | 1.28%, see rank | 1.09% | 0.92% |
| Scotch-Irish | 350 | 1.83%, see rank | 1.27% | 0.99% |
| Scottish | 870 | 4.54%, see rank | 2.56% | 1.72% |
| Subsaharan African | 37 | 0.19%, see rank | 0.73% | 0.95% |
| Swedish | 630 | 3.29%, see rank | 2.43% | 1.27% |
| Swiss | 103 | 0.54%, see rank | 0.46% | 0.30% |
| Ukrainian | 14 | 0.07%, see rank | 0.25% | 0.31% |
| American | 1,294 | 6.75%, see rank | 5.18% | 7.12% |
| Welsh | 229 | 1.19%, see rank | 0.92% | 0.57% |
ACS 2008-2012 data
16,806 (90.28%) out of the total population of 18,616 reported first ancestry.
| Louisville, CO | % of the Total Population | Colorado | U.S. | |
| Arab | 40 | 0.21%, see rank | 0.36% | 0.53% |
| Czech | 367 | 1.97%, see rank | 0.73% | 0.50% |
| Danish | 134 | 0.72%, see rank | 0.90% | 0.45% |
| Dutch | 562 | 3.02%, see rank | 1.91% | 1.51% |
| English | 2,861 | 15.37%, see rank | 11.19% | 8.53% |
| French | 1,075 | 5.77%, see rank | 3.75% | 3.54% |
| German | 4,403 | 23.65%, see rank | 22.06% | 15.79% |
| Greek | 72 | 0.39%, see rank | 0.40% | 0.42% |
| Hungarian | 246 | 1.32%, see rank | 0.42% | 0.48% |
| Irish | 2,875 | 15.44%, see rank | 12.52% | 11.36% |
| Italian | 1,305 | 7.01%, see rank | 5.22% | 5.66% |
| Norwegian | 664 | 3.57%, see rank | 2.26% | 1.46% |
| Polish | 705 | 3.79%, see rank | 2.55% | 3.13% |
| Portuguese | 94 | 0.50%, see rank | 0.20% | 0.46% |
| Russian | 454 | 2.44%, see rank | 1.15% | 0.97% |
| Scotch-Irish | 313 | 1.68%, see rank | 1.37% | 1.07% |
| Scottish | 969 | 5.21%, see rank | 2.69% | 1.81% |
| Subsaharan African | 25 | 0.13%, see rank | 0.64% | 0.93% |
| Swedish | 588 | 3.16%, see rank | 2.64% | 1.34% |
| Swiss | 153 | 0.82%, see rank | 0.48% | 0.31% |
| Ukrainian | 36 | 0.19%, see rank | 0.25% | 0.31% |
| American | 953 | 5.12%, see rank | 4.88% | 6.72% |
| Welsh | 301 | 1.62%, see rank | 0.93% | 0.60% |
ACS 2006-2010 data
17,008 (92.08%) out of the total population of 18,470 reported first ancestry.
| Louisville, CO | % of the Total Population | Colorado | U.S. | |
| Arab | 23 | 0.12%, see rank | 0.33% | 0.50% |
| Czech | 335 | 1.81%, see rank | 0.78% | 0.53% |
| Danish | 185 | 1.00%, see rank | 0.95% | 0.48% |
| Dutch | 427 | 2.31%, see rank | 1.98% | 1.63% |
| English | 2,980 | 16.13%, see rank | 11.90% | 9.02% |
| French | 1,180 | 6.39%, see rank | 3.96% | 3.77% |
| German | 4,994 | 27.04%, see rank | 22.99% | 16.51% |
| Greek | 98 | 0.53%, see rank | 0.40% | 0.44% |
| Hungarian | 123 | 0.67%, see rank | 0.43% | 0.51% |
| Irish | 2,932 | 15.87%, see rank | 12.87% | 11.76% |
| Italian | 1,367 | 7.40%, see rank | 5.18% | 5.78% |
| Norwegian | 643 | 3.48%, see rank | 2.34% | 1.51% |
| Polish | 825 | 4.47%, see rank | 2.54% | 3.24% |
| Portuguese | 115 | 0.62%, see rank | 0.22% | 0.47% |
| Russian | 542 | 2.93%, see rank | 1.23% | 1.01% |
| Scotch-Irish | 429 | 2.32%, see rank | 2.21% | 1.72% |
| Scottish | 1,009 | 5.46%, see rank | 2.86% | 1.92% |
| Subsaharan African | 79 | 0.43%, see rank | 0.55% | 0.91% |
| Swedish | 785 | 4.25%, see rank | 2.81% | 1.41% |
| Swiss | 140 | 0.76%, see rank | 0.52% | 0.33% |
| Ukrainian | 81 | 0.44%, see rank | 0.27% | 0.31% |
| American | 703 | 3.81%, see rank | 4.46% | 6.28% |
| Welsh | 287 | 1.55%, see rank | 0.96% | 0.63% |
ACS 2005-2009 data
17,722 (93.01%) out of the total population of 19,053 reported first ancestry.
| Louisville, CO | % of the Total Population | Colorado | U.S. | |
| Arab | 36 | 0.19%, see rank | 0.33% | 0.50% |
| Czech | 428 | 2.25%, see rank | 0.80% | 0.54% |
| Danish | 208 | 1.09%, see rank | 0.99% | 0.49% |
| Dutch | 562 | 2.95%, see rank | 2.06% | 1.68% |
| English | 2,855 | 14.98%, see rank | 12.26% | 9.29% |
| French | 1,285 | 6.74%, see rank | 4.07% | 3.90% |
| German | 5,179 | 27.18%, see rank | 23.49% | 16.89% |
| Greek | 228 | 1.20%, see rank | 0.42% | 0.45% |
| Hungarian | 32 | 0.17%, see rank | 0.45% | 0.52% |
| Irish | 2,891 | 15.17%, see rank | 13.00% | 12.01% |
| Italian | 1,320 | 6.93%, see rank | 5.20% | 5.91% |
| Norwegian | 738 | 3.87%, see rank | 2.40% | 1.55% |
| Polish | 863 | 4.53%, see rank | 2.56% | 3.32% |
| Portuguese | 116 | 0.61%, see rank | 0.22% | 0.48% |
| Russian | 611 | 3.21%, see rank | 1.28% | 1.04% |
| Scotch-Irish | 430 | 2.26%, see rank | 2.31% | 1.77% |
| Scottish | 1,046 | 5.49%, see rank | 2.90% | 1.97% |
| Subsaharan African | 103 | 0.54%, see rank | 0.55% | 0.88% |
| Swedish | 878 | 4.61%, see rank | 2.84% | 1.45% |
| Swiss | 178 | 0.93%, see rank | 0.50% | 0.34% |
| Ukrainian | 81 | 0.43%, see rank | 0.27% | 0.32% |
| American | 821 | 4.31%, see rank | 4.64% | 6.43% |
| Welsh | 313 | 1.64%, see rank | 0.99% | 0.65% |
US Census 2000 data
16,677 (88.07%) out of the total population of 18,937 reported first ancestry.
| Louisville, CO | % of the Total Population | Colorado | U.S. | |
| Arab | 104 | 0.55%, see rank | 0.24% | 0.36% |
| Czech | 118 | 0.62%, see rank | 0.37% | 0.27% |
| Danish | 294 | 1.55%, see rank | 0.61% | 0.30% |
| Dutch | 232 | 1.23%, see rank | 1.12% | 0.91% |
| English | 1,930 | 10.19%, see rank | 7.68% | 5.91% |
| French | 530 | 2.80%, see rank | 2.24% | 2.39% |
| German | 3,679 | 19.43%, see rank | 15.70% | 10.81% |
| Greek | 64 | 0.34%, see rank | 0.28% | 0.34% |
| Hungarian | 71 | 0.37%, see rank | 0.27% | 0.32% |
| Irish | 1,949 | 10.29%, see rank | 7.36% | 6.85% |
| Italian | 945 | 4.99%, see rank | 3.69% | 4.59% |
| Norwegian | 396 | 2.09%, see rank | 1.83% | 1.15% |
| Polish | 572 | 3.02%, see rank | 1.56% | 2.24% |
| Portuguese | 87 | 0.46%, see rank | 0.11% | 0.33% |
| Russian | 211 | 1.11%, see rank | 0.69% | 0.68% |
| Scotch-Irish | 280 | 1.48%, see rank | 1.52% | 1.17% |
| Scottish | 520 | 2.75%, see rank | 1.70% | 1.12% |
| Subsaharan African | 34 | 0.18%, see rank | 0.38% | 0.61% |
| Swedish | 408 | 2.15%, see rank | 1.72% | 0.87% |
| Swiss | 66 | 0.35%, see rank | 0.28% | 0.19% |
| Ukrainian | 45 | 0.24%, see rank | 0.19% | 0.24% |
| American | 697 | 3.68%, see rank | 5.15% | 7.33% |
| Welsh | 131 | 0.69%, see rank | 0.49% | 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.