USA.com / Illinois / Dekalb County / Cortland, IL / Population and Races / Historical First Ancestry Data
Cortland, IL Historical First Ancestry Data
ACS 2010-2014 data
3,803 (86.93%) out of the total population of 4,375 reported first ancestry.
| Cortland, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.71% | 0.56% |
| Czech | 55 | 1.26%, see rank | 0.92% | 0.47% |
| Danish | 136 | 3.11%, see rank | 0.38% | 0.42% |
| Dutch | 36 | 0.82%, see rank | 1.37% | 1.40% |
| English | 231 | 5.28%, see rank | 5.90% | 8.02% |
| French | 116 | 2.65%, see rank | 2.13% | 3.34% |
| German | 1,654 | 37.81%, see rank | 19.07% | 15.03% |
| Greek | 9 | 0.21%, see rank | 0.76% | 0.41% |
| Hungarian | 11 | 0.25%, see rank | 0.40% | 0.46% |
| Irish | 1,004 | 22.95%, see rank | 12.00% | 10.80% |
| Italian | 236 | 5.39%, see rank | 6.14% | 5.52% |
| Norwegian | 128 | 2.93%, see rank | 1.25% | 1.42% |
| Polish | 314 | 7.18%, see rank | 7.22% | 3.01% |
| Portuguese | 0 | 0.00%, see rank | 0.08% | 0.44% |
| Russian | 0 | 0.00%, see rank | 0.97% | 0.92% |
| Scotch-Irish | 0 | 0.00%, see rank | 0.59% | 0.99% |
| Scottish | 57 | 1.30%, see rank | 1.16% | 1.72% |
| Subsaharan African | 63 | 1.44%, see rank | 0.64% | 0.95% |
| Swedish | 246 | 5.62%, see rank | 2.13% | 1.27% |
| Swiss | 0 | 0.00%, see rank | 0.27% | 0.30% |
| Ukrainian | 12 | 0.27%, see rank | 0.40% | 0.31% |
| American | 126 | 2.88%, see rank | 5.00% | 7.12% |
| Welsh | 0 | 0.00%, see rank | 0.37% | 0.57% |
ACS 2008-2012 data
3,755 (87.73%) out of the total population of 4,280 reported first ancestry.
| Cortland, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.64% | 0.53% |
| Czech | 80 | 1.87%, see rank | 0.96% | 0.50% |
| Danish | 86 | 2.01%, see rank | 0.40% | 0.45% |
| Dutch | 9 | 0.21%, see rank | 1.46% | 1.51% |
| English | 224 | 5.23%, see rank | 6.23% | 8.53% |
| French | 148 | 3.46%, see rank | 2.26% | 3.54% |
| German | 1,996 | 46.64%, see rank | 19.89% | 15.79% |
| Greek | 0 | 0.00%, see rank | 0.78% | 0.42% |
| Hungarian | 0 | 0.00%, see rank | 0.41% | 0.48% |
| Irish | 915 | 21.38%, see rank | 12.52% | 11.36% |
| Italian | 367 | 8.57%, see rank | 6.29% | 5.66% |
| Norwegian | 198 | 4.63%, see rank | 1.30% | 1.46% |
| Polish | 434 | 10.14%, see rank | 7.47% | 3.13% |
| Portuguese | 41 | 0.96%, see rank | 0.08% | 0.46% |
| Russian | 0 | 0.00%, see rank | 1.03% | 0.97% |
| Scotch-Irish | 0 | 0.00%, see rank | 0.65% | 1.07% |
| Scottish | 51 | 1.19%, see rank | 1.20% | 1.81% |
| Subsaharan African | 43 | 1.00%, see rank | 0.62% | 0.93% |
| Swedish | 285 | 6.66%, see rank | 2.24% | 1.34% |
| Swiss | 14 | 0.33%, see rank | 0.29% | 0.31% |
| Ukrainian | 12 | 0.28%, see rank | 0.40% | 0.31% |
| American | 32 | 0.75%, see rank | 4.85% | 6.72% |
| Welsh | 33 | 0.77%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
3,438 (90.40%) out of the total population of 3,803 reported first ancestry.
| Cortland, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.55% | 0.50% |
| Czech | 66 | 1.74%, see rank | 1.01% | 0.53% |
| Danish | 0 | 0.00%, see rank | 0.42% | 0.48% |
| Dutch | 26 | 0.68%, see rank | 1.58% | 1.63% |
| English | 239 | 6.28%, see rank | 6.56% | 9.02% |
| French | 186 | 4.89%, see rank | 2.43% | 3.77% |
| German | 1,786 | 46.96%, see rank | 20.72% | 16.51% |
| Greek | 22 | 0.58%, see rank | 0.83% | 0.44% |
| Hungarian | 0 | 0.00%, see rank | 0.43% | 0.51% |
| Irish | 645 | 16.96%, see rank | 12.94% | 11.76% |
| Italian | 355 | 9.33%, see rank | 6.35% | 5.78% |
| Norwegian | 146 | 3.84%, see rank | 1.36% | 1.51% |
| Polish | 371 | 9.76%, see rank | 7.69% | 3.24% |
| Portuguese | 44 | 1.16%, see rank | 0.08% | 0.47% |
| Russian | 31 | 0.82%, see rank | 1.07% | 1.01% |
| Scotch-Irish | 27 | 0.71%, see rank | 1.12% | 1.72% |
| Scottish | 18 | 0.47%, see rank | 1.26% | 1.92% |
| Subsaharan African | 0 | 0.00%, see rank | 0.63% | 0.91% |
| Swedish | 396 | 10.41%, see rank | 2.37% | 1.41% |
| Swiss | 20 | 0.53%, see rank | 0.33% | 0.33% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.31% |
| American | 44 | 1.16%, see rank | 4.61% | 6.28% |
| Welsh | 37 | 0.97%, see rank | 0.41% | 0.63% |
ACS 2005-2009 data
3,060 (91.78%) out of the total population of 3,334 reported first ancestry.
| Cortland, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 0 | 0.00%, see rank | 0.52% | 0.50% |
| Czech | 47 | 1.41%, see rank | 1.02% | 0.54% |
| Danish | 0 | 0.00%, see rank | 0.44% | 0.49% |
| Dutch | 28 | 0.84%, see rank | 1.61% | 1.68% |
| English | 242 | 7.26%, see rank | 6.71% | 9.29% |
| French | 141 | 4.23%, see rank | 2.51% | 3.90% |
| German | 1,537 | 46.10%, see rank | 21.16% | 16.89% |
| Greek | 34 | 1.02%, see rank | 0.85% | 0.45% |
| Hungarian | 0 | 0.00%, see rank | 0.45% | 0.52% |
| Irish | 531 | 15.93%, see rank | 13.14% | 12.01% |
| Italian | 286 | 8.58%, see rank | 6.45% | 5.91% |
| Norwegian | 171 | 5.13%, see rank | 1.38% | 1.55% |
| Polish | 305 | 9.15%, see rank | 7.85% | 3.32% |
| Portuguese | 47 | 1.41%, see rank | 0.07% | 0.48% |
| Russian | 24 | 0.72%, see rank | 1.11% | 1.04% |
| Scotch-Irish | 14 | 0.42%, see rank | 1.15% | 1.77% |
| Scottish | 31 | 0.93%, see rank | 1.31% | 1.97% |
| Subsaharan African | 0 | 0.00%, see rank | 0.62% | 0.88% |
| Swedish | 386 | 11.58%, see rank | 2.46% | 1.45% |
| Swiss | 22 | 0.66%, see rank | 0.33% | 0.34% |
| Ukrainian | 0 | 0.00%, see rank | 0.40% | 0.32% |
| American | 34 | 1.02%, see rank | 4.55% | 6.43% |
| Welsh | 32 | 0.96%, see rank | 0.42% | 0.65% |
US Census 2000 data
1,526 (73.86%) out of the total population of 2,066 reported first ancestry.
| Cortland, IL | % of the Total Population | Illinois | U.S. | |
| Arab | 10 | 0.48%, see rank | 0.38% | 0.36% |
| Czech | 13 | 0.63%, see rank | 0.57% | 0.27% |
| Danish | 8 | 0.39%, see rank | 0.26% | 0.30% |
| Dutch | 25 | 1.21%, see rank | 0.90% | 0.91% |
| English | 121 | 5.86%, see rank | 4.12% | 5.91% |
| French | 31 | 1.50%, see rank | 1.34% | 2.39% |
| German | 484 | 23.43%, see rank | 13.82% | 10.81% |
| Greek | 4 | 0.19%, see rank | 0.65% | 0.34% |
| Hungarian | 0 | 0.00%, see rank | 0.27% | 0.32% |
| Irish | 139 | 6.73%, see rank | 7.62% | 6.85% |
| Italian | 62 | 3.00%, see rank | 4.81% | 4.59% |
| Norwegian | 49 | 2.37%, see rank | 0.96% | 1.15% |
| Polish | 99 | 4.79%, see rank | 5.68% | 2.24% |
| Portuguese | 0 | 0.00%, see rank | 0.04% | 0.33% |
| Russian | 0 | 0.00%, see rank | 0.72% | 0.68% |
| Scotch-Irish | 10 | 0.48%, see rank | 0.73% | 1.17% |
| Scottish | 15 | 0.73%, see rank | 0.73% | 1.12% |
| Subsaharan African | 0 | 0.00%, see rank | 0.57% | 0.61% |
| Swedish | 55 | 2.66%, see rank | 1.52% | 0.87% |
| Swiss | 7 | 0.34%, see rank | 0.17% | 0.19% |
| Ukrainian | 0 | 0.00%, see rank | 0.30% | 0.24% |
| American | 143 | 6.92%, see rank | 4.58% | 7.33% |
| Welsh | 7 | 0.34%, see rank | 0.20% | 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.