COUNTY · 1990 CENSUS

Winnebago County

Illinois · 252,913 residents · 513 sq mi

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The short version

Winnebago County is a county of 252,913 people in Illinois. The typical home is worth $59,900. About 17% of adults have finished a four-year degree. The poverty rate is 10.1%, under the national 13.2%. The population has fallen 9% since 2000. Households earn $31,336 at the median, near the US median.

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

Land area

513 sq mi

Population, 1990 – 2024

2024283K

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%

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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

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

Venezuelan0%(139)

Bolivian0%(89)

Nicaraguan0%(52)

Peruvian0%(46)

Paraguayan0%(39)

Costa Rican0%(10)

Panamanian0%(8)

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

Bangladeshi0%(20)

Pacific Islander origin

Samoan0%(72)

Chamorro0%(36)

Native Hawaiian0%(31)

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)

Subsaharan African1%(2,853)

+ 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)

Palestinian0%(28)

Armenian0%(28)

Australian0%(28)

Macedonian0%(27)

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

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

6.2%

−6.5 ptssince 2013

from 12.7% in 2013

US average: 8.4%

Employer-based

51.9%

−1.3 ptssince 2020

from 53.2% in 2020

US average: 54.8%

Direct-purchase

12.4%

−1.1 ptssince 2020

from 13.5% in 2020

US average: 13.8%

Medicare

20.6%

+0.7 ptssince 2020

from 19.9% in 2020

US average: 18.4%

Medicaid

26.9%

+1.0 ptssince 2020

from 25.9% in 2020

US average: 20.9%

VA health care

1.9%

−0.2 ptssince 2020

from 2.1% in 2020

US average: 2.2%

Any private

62.4%

−2.1 ptssince 2020

from 64.5% in 2020

US average: 67.1%

Any public

44.4%

+0.9 ptssince 2020

from 43.5% in 2020

US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024

Gulf War (2001 or later)19.5%(2,555)

US avg: 26.4%

Gulf War (1990s)16.1%(2,110)

US avg: 24.3%

Vietnam era38.8%(5,092)

US avg: 33.1%

Korean War5.6%(741)

US avg: 4.5%

World War II1.9%(246)

US avg: 1%

Share of the 13,120 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

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