2017 Growth Rate
-0.46%
County Website
State
Founded
January 16, 1836
County Seat
Rockford
Lat/Lng
Winnebago County, Illinois's estimated population is 284,740 with a growth rate of -0.46% in the past year according to the most recent United States census data. Winnebago County, Illinois is the 7th largest county in Illinois.
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2018 | 284,081 | -659 | -0.23% |
| 2017 | 284,740 | -1,314 | -0.46% |
| 2016 | 286,054 | -1,168 | -0.41% |
| 2015 | 287,222 | -1,553 | -0.54% |
| 2014 | 288,775 | -2,219 | -0.76% |
| 2013 | 290,994 | -1,118 | -0.38% |
| 2012 | 292,112 | -1,522 | -0.52% |
| 2011 | 293,634 | -1,454 | -0.49% |
| 2010 | 295,088 | 42,175 | 16.68% |
| 1990 | 252,913 | 2,029 | 0.81% |
| 1980 | 250,884 | 4,261 | 1.73% |
| 1970 | 246,623 | 36,858 | 17.57% |
| 1960 | 209,765 | 57,380 | 37.65% |
| 1950 | 152,385 | 31,207 | 25.75% |
| 1940 | 121,178 | 3,805 | 3.24% |
| 1930 | 117,373 | 26,444 | 29.08% |
| 1920 | 90,929 | 27,776 | 43.98% |
| 1910 | 63,153 | 15,308 | 31.99% |
| 1900 | 47,845 | 7,907 | 19.80% |
| 1890 | 39,938 | 9,433 | 30.92% |
| 1880 | 30,505 | 1,204 | 4.11% |
| 1870 | 29,301 | 4,810 | 19.64% |
| 1860 | 24,491 | 12,718 | 108.03% |
| 1850 | 11,773 | 7,164 | 155.44% |
| 1840 | 4,609 | 0.00% |
| Race | Population | Percentage |
|---|---|---|
| White | 226,087 | 79.00% |
| Black or African American | 36,833 | 12.87% |
| Two or More Races | 8,954 | 3.13% |
| Asian | 7,339 | 2.56% |
| Some Other Race | 6,016 | 2.10% |
| American Indian and Alaska Native | 846 | 0.30% |
| Native Hawaiian and Other Pacific Islander | 99 | 0.03% |
39.6
38.3
40.7
There are 218,501 adults, (47,426 of whom are seniors) in Winnebago County, Illinois.
Female
146,426
51.17%
Male
139,748
48.83%
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 114,608 | 2.46 | 65.7 |
| Married | 51,390 | 3.08 | 84.7 |
| Non Family | 40,892 | 1.2 | 53.9 |
| Female | 16,236 | 3.34 | 40.7 |
| Male | 6,090 | 3.4 | 52.6 |
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 7,860 | 4.04% |
| 9th to 12th Grade | 16,103 | 8.28% |
| High School Graduate | 62,181 | 31.98% |
| Some College | 47,393 | 24.38% |
| Associates Degree | 16,982 | 8.73% |
| Bachelors Degree | 27,293 | 14.04% |
| Graduate Degree | 16,617 | 8.55% |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 47.47%.
$35,796
Average Earnings
$43,093
Average Male
$28,795
Average Female
85.46% of Winnebago County, Illinois residents speak only English, while 14.54% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 9.75% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 196,147 | 19,118 | 9.75% |
| Black | 35,664 | 13,730 | 38.50% |
| Hispanic | 35,095 | 8,419 | 23.99% |
| Multiple | 8,592 | 2,196 | 25.56% |
| Asian | 7,317 | 1,222 | 16.70% |
| Other | 5,994 | 944 | 15.75% |
| Native | 804 | 285 | 35.45% |
| Islander | 98 | 26 | 26.53% |
15.64%
Overall Poverty Rate
14.13%
Male Poverty Rate
17.07%
Female Poverty Rate
The race most likely to be in poverty in Winnebago County, Illinois is Black, with 38.50% below the poverty level.
The race least likely to be in poverty in Winnebago County, Illinois is White, with 9.75% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.28%. Among those working part-time, it was 19.21%, and for those that did not work, the poverty rate was 20.35%.
47.5%
Overall Marriage Rate
50.0%
Male Marriage Rate
45.3%
Female Marriage Rate
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.
| Name | Veterans | % of Total |
|---|---|---|
| White | 15,798 | 8.83% |
| Black | 1,277 | 5.04% |
| Hispanic | 645 | 2.96% |
| 2 or More | 268 | 6.56% |
| Asian | 211 | 3.85% |
| Other | 87 | 2.28% |
| Indian | 45 | 6.87% |
7.03%
Veteran Poverty Rate
30.14%
Veteran Disability Rate
64.5%
Labor Force Participation
58.6%
Employment Rate
9.1%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
91.60%
Native Born
8.40%
Foreign Born
4.27%
Non Citizen
91.60% of Winnebago County, Illinois residents were born in the United States, with 68.30% having been born in Illinois. 4.27% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
| City | 2010 Census | 2016 Estimated | Growth | Growth Rate |
|---|---|---|---|---|
| Rockford | 153162 | 147651 | -5511 | -3.60% |
| Loves Park | 23999 | 23413 | -586 | -2.44% |
| Machesney Park | 23495 | 22873 | -622 | -2.65% |
| Roscoe | 10782 | 10521 | -261 | -2.42% |
| South Beloit | 7896 | 7652 | -244 | -3.09% |
| Rockton | 7685 | 7499 | -186 | -2.42% |
| Cherry Valley | 3162 | 3087 | -75 | -2.37% |
| Winnebago | 3101 | 3002 | -99 | -3.19% |
| Pecatonica | 2203 | 2111 | -92 | -4.18% |
| Durand | 1450 | 1404 | -46 | -3.17% |
| New Milford | 697 | 666 | -31 | -4.45% |