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COUNTY · 1990 CENSUS

Winnebago County

Illinois · 252,913 residents · 513.05 sq mi
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The short version

Winnebago County has roughly average household income, with a median household income of $31,336. Population has declined 9% since 2000. Median home value is $59,900.

At a glance
Average income
near the US median
US median: $30,130
Mid-age
median age 33.5
US median: 33.0
Less educated
17% hold a bachelor's degree
US average: 20%
More affordable
home values down 13%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
252,913
−9%vs 2000
vs 278,418 in 2000
1990 – 2025
Median age
33.5
−7%vs 2000
vs 35.9 in 2000
US average: 33.0
Population, 1990 – 2024
249K261K274K287K300K1990201020202024Winnebago County
2024283K
1990201020202024
Age distribution, 1990
Under 57.6%(19,215)
US avg: 7.3%
5 to 97.4%(18,810)
US avg: 7.3%
10 to 146.9%(17,499)
US avg: 6.9%
15 to 197%(17,767)
US avg: 7.1%
20 to 246.6%(16,575)
US avg: 7.5%
25 to 3417.1%(43,215)
US avg: 17.5%
35 to 4415.5%(39,197)
US avg: 15.1%
45 to 5410.5%(26,545)
US avg: 10.2%
55 to 648.7%(22,009)
US avg: 8.5%
65 to 747.5%(18,978)
US avg: 7.3%
75 to 843.9%(9,890)
US avg: 4%
85 and over1.3%(3,213)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$31,336
−6%inflation adjusted, since 2000
vs $43,886 in 2000
US average: $30,130
1990 – 2024
Per capita income
$14,516
−32%vs 2000
vs $21,194 in 2000
US average: $14,340
Poverty rate
10.1%
+0.5 ptsvs 2000
vs 9.6% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$59,900
−13%inflation adjusted, since 2000
vs $90,900 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$377
−3%inflation adjusted, since 2000
vs $514 in 2000
US average: $450
Owner-occupied
68.0%
−2.0 ptsvs 2000
vs 70.0% in 2000
32.0% rent
RELATED:See current rent listings in Winnebago County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic79.3%(220,817)
Black10.4%(29,038)
Hispanic / Latino6.9%(19,206)
Asian1.7%(4,719)
Other0%
1990
White, non-Hispanic87.9%(222,425)
Black9.1%(23,020)
Hispanic / Latino2.8%(7,050)
Asian1.3%(3,188)
Other1.7%(4,280)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican12.3%(34,835)
Puerto Rican1%(2,784)
Central American0.7%(2,084)
South American0.5%(1,283)
Salvadoran0.4%(1,086)
Cuban0.3%(798)
Guatemalan0.2%(650)
Ecuadorian0.2%(613)
Spaniard0.2%(536)
Dominican0.1%(413)
Colombian0.1%(357)
Honduran0.1%(278)
+ 7 more hispanic origin groups with data
Asian origin
Asian Indian0.5%(1,534)
Laotian0.5%(1,422)
Filipino0.4%(1,184)
Chinese0.4%(1,177)
Burmese0.2%(674)
Vietnamese0.2%(596)
Korean0.1%(396)
Pakistani0.1%(331)
Japanese0%(117)
Thai0%(88)
Mongolian0%(74)
Taiwanese0%(44)
+ 1 more asian origin group with data
Pacific Islander origin
Samoan0%(72)
Chamorro0%(36)
Fijian0%(15)
Ancestry
German22%(62,299)
Irish11.8%(33,521)
English9.1%(25,640)
Italian6.6%(18,757)
Swedish6.4%(18,046)
Polish3.8%(10,641)
American2.9%(8,127)
Norwegian2.7%(7,603)
Scottish1.5%(4,239)
Dutch1.3%(3,723)
French1.3%(3,550)
+ 46 more ancestry groups with data
Danish0.6%(1,617)
Arab0.6%(1,584)
Scotch-Irish0.5%(1,491)
Swiss0.4%(1,266)
Russian0.4%(1,234)
Czech0.4%(1,114)
French Canadian0.4%(1,027)
Welsh0.4%(1,005)
Lithuanian0.3%(966)
West Indian0.3%(720)
Iraqi0.2%(707)
Nigerian0.2%(693)
Ukrainian0.2%(690)
Greek0.2%(578)
Serbian0.2%(480)
British0.2%(476)
Hungarian0.1%(423)
Finnish0.1%(421)
Croatian0.1%(332)
Egyptian0.1%(326)
Austrian0.1%(300)
Jamaican0.1%(299)
Belgian0.1%(295)
Jordanian0.1%(287)
Slovak0.1%(239)
Portuguese0.1%(231)
Haitian0.1%(186)
Brazilian0%(126)
Canadian0%(122)
Ghanaian0%(76)
Lebanese0%(69)
Ethiopian0%(68)
Romanian0%(63)
Moroccan0%(62)
Bulgarian0%(44)
Israeli0%(37)
Slovene0%(36)
Armenian0%(28)
Turkish0%(22)
Iranian0%(20)
Latvian0%(18)
Kenyan0%(15)
Barbadian0%(13)
RANKED:Largest German population · Largest Mexican population · Largest Irish population · Largest English population · Largest Italian population
Section 05

Education

Bachelor's degree or higher
16.7%
−2.7 ptsvs 2000
vs 19.4% in 2000
US average: 20.3%
High school or higher
76.3%
−5.1 ptsvs 2000
vs 81.4% in 2000
US average: 75.2%
Graduate degree
5.2%
−1.4 ptsvs 2000
vs 6.6% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
17.0 min
+28%vs 2000
vs 13.3 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married37%(40,902)
Married48.5%(53,661)
Widowed3.1%(3,477)
Divorced11.4%(12,578)
Women 15+
Never married31.9%(37,629)
Married45%(53,121)
Widowed9.4%(11,137)
Divorced13.6%(16,093)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Winnebago County

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Pop 289,709
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Head to head

Compare Winnebago County to nearby counties

WINNEBAGO COUNTY VS
Boone County
Income$84,571+170%
Home value$216,900+262%
Population53,568−81%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Ogle County
Income$82,132+162%
Home value$189,200+216%
Population51,399−82%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Rock County
Income$75,673+141%
Home value$231,600+287%
Population166,472−41%
SEE FULL COMPARISON →
WINNEBAGO COUNTY VS
Stephenson County
Income$64,043+104%
Home value$134,900+125%
Population43,220−85%
SEE FULL COMPARISON →
Frequently asked

How many people live in Winnebago County, Illinois?

Winnebago County, Illinois has about 252,913 residents according to the 1990 Census.

What is the median household income in Winnebago County, Illinois?

The typical household in Winnebago County, Illinois earns about $31,336 a year. Half of households make more than that, and half make less.

Is Winnebago County, Illinois expensive?

In Winnebago County, Illinois, the median home is worth about $59,900, and the typical rent is about $377 a month.

How educated are people in Winnebago County, Illinois?

About 16.7% of adults age 25 and over in Winnebago County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Winnebago County, Illinois?

About 10.1% of people in Winnebago County, Illinois live below the federal poverty line.

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Explore from here

80 census tracts (top 20 by population)
Census Tract 38.05Census Tract 38.01Census Tract 40.04Census Tract 42Census Tract 37.06Census Tract 40.02Census Tract 39.03Census Tract 38.10Census Tract 38.06Census Tract 16Census Tract 15Census Tract 5.01Census Tract 41Census Tract 39.01Census Tract 43Census Tract 5.06Census Tract 37.05Census Tract 34Census Tract 6Census Tract 18
20 ZIP codes
ZIP 61107ZIP 61108ZIP 61109ZIP 61111ZIP 61103ZIP 61115ZIP 61073ZIP 61101ZIP 61104ZIP 61102ZIP 61114ZIP 61072ZIP 61080ZIP 61088ZIP 61016ZIP 61063ZIP 61024ZIP 61079ZIP 61112ZIP 61077
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →