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

Population density

493 / sq mi

−9%vs 2000

vs 543 / sq mi in 2000

US average: 221

Median age

33.5

−7%vs 2000

vs 35.9 in 2000

US average: 33.0

Population, 1990 – 2024

2024283K

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

Afford Score

1.9

−8%vs 2000

vs 2.1 in 2000

1990 – 2024

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%

Diversity Score41.6%(115,895)

1990

White, non-Hispanic87.9%(222,425)

Black9.1%(23,020)

Hispanic / Latino2.8%(7,050)

Asian1.3%(3,188)

Other1.7%(4,280)

Diversity Score32.4%(81,864)

Diversity Score

−22%vs 2000

vs 42 in 2000

1990 – 2024

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.

Drill deeper

Places similar to Winnebago County

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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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →