Rockford Metro Area Historical First Ancestry Data
ACS 2010-2014 data
301,385 (87.10%) out of the total population of 346,031 reported first ancestry.
| Rockford Area | % of the Total Population | Illinois | U.S. | |
| Arab | 1,188 | 0.34%, see rank | 0.71% | 0.56% |
| Czech | 1,967 | 0.57%, see rank | 0.92% | 0.47% |
| Danish | 1,860 | 0.54%, see rank | 0.38% | 0.42% |
| Dutch | 5,600 | 1.62%, see rank | 1.37% | 1.40% |
| English | 26,055 | 7.53%, see rank | 5.90% | 8.02% |
| French | 9,019 | 2.61%, see rank | 2.13% | 3.34% |
| German | 87,277 | 25.22%, see rank | 19.07% | 15.03% |
| Greek | 971 | 0.28%, see rank | 0.76% | 0.41% |
| Hungarian | 1,032 | 0.30%, see rank | 0.40% | 0.46% |
| Irish | 45,962 | 13.28%, see rank | 12.00% | 10.80% |
| Italian | 25,365 | 7.33%, see rank | 6.14% | 5.52% |
| Norwegian | 11,874 | 3.43%, see rank | 1.25% | 1.42% |
| Polish | 14,363 | 4.15%, see rank | 7.22% | 3.01% |
| Portuguese | 392 | 0.11%, see rank | 0.08% | 0.44% |
| Russian | 1,209 | 0.35%, see rank | 0.97% | 0.92% |
| Scotch-Irish | 2,128 | 0.61%, see rank | 0.59% | 0.99% |
| Scottish | 4,056 | 1.17%, see rank | 1.16% | 1.72% |
| Subsaharan African | 1,279 | 0.37%, see rank | 0.64% | 0.95% |
| Swedish | 26,821 | 7.75%, see rank | 2.13% | 1.27% |
| Swiss | 1,714 | 0.50%, see rank | 0.27% | 0.30% |
| Ukrainian | 691 | 0.20%, see rank | 0.40% | 0.31% |
| American | 20,969 | 6.06%, see rank | 5.00% | 7.12% |
| Welsh | 1,348 | 0.39%, see rank | 0.37% | 0.57% |
ACS 2008-2012 data
313,085 (89.82%) out of the total population of 348,574 reported first ancestry.
| Rockford Area | % of the Total Population | Illinois | U.S. | |
| Arab | 1,090 | 0.31%, see rank | 0.64% | 0.53% |
| Czech | 2,075 | 0.60%, see rank | 0.96% | 0.50% |
| Danish | 2,301 | 0.66%, see rank | 0.40% | 0.45% |
| Dutch | 6,169 | 1.77%, see rank | 1.46% | 1.51% |
| English | 28,182 | 8.08%, see rank | 6.23% | 8.53% |
| French | 9,079 | 2.60%, see rank | 2.26% | 3.54% |
| German | 88,726 | 25.45%, see rank | 19.89% | 15.79% |
| Greek | 983 | 0.28%, see rank | 0.78% | 0.42% |
| Hungarian | 835 | 0.24%, see rank | 0.41% | 0.48% |
| Irish | 46,654 | 13.38%, see rank | 12.52% | 11.36% |
| Italian | 25,718 | 7.38%, see rank | 6.29% | 5.66% |
| Norwegian | 12,718 | 3.65%, see rank | 1.30% | 1.46% |
| Polish | 14,295 | 4.10%, see rank | 7.47% | 3.13% |
| Portuguese | 371 | 0.11%, see rank | 0.08% | 0.46% |
| Russian | 1,473 | 0.42%, see rank | 1.03% | 0.97% |
| Scotch-Irish | 2,228 | 0.64%, see rank | 0.65% | 1.07% |
| Scottish | 4,974 | 1.43%, see rank | 1.20% | 1.81% |
| Subsaharan African | 1,044 | 0.30%, see rank | 0.62% | 0.93% |
| Swedish | 27,888 | 8.00%, see rank | 2.24% | 1.34% |
| Swiss | 1,701 | 0.49%, see rank | 0.29% | 0.31% |
| Ukrainian | 722 | 0.21%, see rank | 0.40% | 0.31% |
| American | 28,937 | 8.30%, see rank | 4.85% | 6.72% |
| Welsh | 1,553 | 0.45%, see rank | 0.40% | 0.60% |
ACS 2006-2010 data
320,373 (92.18%) out of the total population of 347,539 reported first ancestry.
| Rockford Area | % of the Total Population | Illinois | U.S. | |
| Arab | 1,062 | 0.31%, see rank | 0.55% | 0.50% |
| Czech | 2,014 | 0.58%, see rank | 1.01% | 0.53% |
| Danish | 2,520 | 0.73%, see rank | 0.42% | 0.48% |
| Dutch | 6,408 | 1.84%, see rank | 1.58% | 1.63% |
| English | 29,440 | 8.47%, see rank | 6.56% | 9.02% |
| French | 9,813 | 2.82%, see rank | 2.43% | 3.77% |
| German | 89,251 | 25.68%, see rank | 20.72% | 16.51% |
| Greek | 958 | 0.28%, see rank | 0.83% | 0.44% |
| Hungarian | 999 | 0.29%, see rank | 0.43% | 0.51% |
| Irish | 47,031 | 13.53%, see rank | 12.94% | 11.76% |
| Italian | 25,751 | 7.41%, see rank | 6.35% | 5.78% |
| Norwegian | 13,951 | 4.01%, see rank | 1.36% | 1.51% |
| Polish | 13,590 | 3.91%, see rank | 7.69% | 3.24% |
| Portuguese | 98 | 0.03%, see rank | 0.08% | 0.47% |
| Russian | 1,384 | 0.40%, see rank | 1.07% | 1.01% |
| Scotch-Irish | 3,718 | 1.07%, see rank | 1.12% | 1.72% |
| Scottish | 4,799 | 1.38%, see rank | 1.26% | 1.92% |
| Subsaharan African | 737 | 0.21%, see rank | 0.63% | 0.91% |
| Swedish | 29,522 | 8.49%, see rank | 2.37% | 1.41% |
| Swiss | 2,119 | 0.61%, see rank | 0.33% | 0.33% |
| Ukrainian | 606 | 0.17%, see rank | 0.40% | 0.31% |
| American | 32,306 | 9.30%, see rank | 4.61% | 6.28% |
| Welsh | 1,663 | 0.48%, see rank | 0.41% | 0.63% |
ACS 2005-2009 data
321,939 (92.46%) out of the total population of 348,203 reported first ancestry.
| Rockford Area | % of the Total Population | Illinois | U.S. | |
| Arab | 979 | 0.28%, see rank | 0.52% | 0.50% |
| Czech | 1,989 | 0.57%, see rank | 1.02% | 0.54% |
| Danish | 2,679 | 0.77%, see rank | 0.44% | 0.49% |
| Dutch | 7,073 | 2.03%, see rank | 1.61% | 1.68% |
| English | 30,803 | 8.85%, see rank | 6.71% | 9.29% |
| French | 10,281 | 2.95%, see rank | 2.51% | 3.90% |
| German | 90,971 | 26.13%, see rank | 21.16% | 16.89% |
| Greek | 1,059 | 0.30%, see rank | 0.85% | 0.45% |
| Hungarian | 1,174 | 0.34%, see rank | 0.45% | 0.52% |
| Irish | 46,676 | 13.40%, see rank | 13.14% | 12.01% |
| Italian | 25,687 | 7.38%, see rank | 6.45% | 5.91% |
| Norwegian | 14,533 | 4.17%, see rank | 1.38% | 1.55% |
| Polish | 13,674 | 3.93%, see rank | 7.85% | 3.32% |
| Portuguese | 115 | 0.03%, see rank | 0.07% | 0.48% |
| Russian | 1,489 | 0.43%, see rank | 1.11% | 1.04% |
| Scotch-Irish | 3,678 | 1.06%, see rank | 1.15% | 1.77% |
| Scottish | 4,565 | 1.31%, see rank | 1.31% | 1.97% |
| Subsaharan African | 583 | 0.17%, see rank | 0.62% | 0.88% |
| Swedish | 30,875 | 8.87%, see rank | 2.46% | 1.45% |
| Swiss | 2,235 | 0.64%, see rank | 0.33% | 0.34% |
| Ukrainian | 465 | 0.13%, see rank | 0.40% | 0.32% |
| American | 32,287 | 9.27%, see rank | 4.55% | 6.43% |
| Welsh | 1,926 | 0.55%, see rank | 0.42% | 0.65% |
* 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.