COUNTY · 1990 CENSUS

Iroquois County

Illinois · 30,787 residents · 1,117 sq mi

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The short version

Iroquois County is a county of 30,787 people in Illinois. Median home value sits at $40,200. 10% of adults hold a bachelor's degree or higher. At a median age of 37.1, this is an older place than the country as a whole. 74% of homes are owner-occupied. Households here earn about 21% less than in Illinois as a whole.

At a glance

Lower income

below the US median

US median: $30,130

Older

median age 37.1

US median: 33.0

Less educated

10% hold a bachelor's degree

US average: 20%

More affordable

home values down 33%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

30,787

−2%vs 2000

vs 31,334 in 2000

1990 – 2025

Median age

37.1

−6%vs 2000

vs 39.6 in 2000

US average: 33.0

Land area

1,117 sq mi

Population, 1990 – 2024

202426K

Age distribution, 1990

Under 56.5%(2,013)

US avg: 7.3%

5 to 97.4%(2,291)

US avg: 7.3%

10 to 147.5%(2,309)

US avg: 6.9%

15 to 196.7%(2,063)

US avg: 7.1%

20 to 245%(1,533)

US avg: 7.5%

25 to 3414.1%(4,335)

US avg: 17.5%

35 to 4413.6%(4,192)

US avg: 15.1%

45 to 5410.6%(3,250)

US avg: 10.2%

55 to 6410.3%(3,167)

US avg: 8.5%

65 to 7410%(3,066)

US avg: 7.3%

75 to 846.1%(1,880)

US avg: 4%

85 and over2.2%(688)

US avg: 1.2%

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Section 02

Income & economy

Median household income

$25,435

−12%inflation adjusted, since 2000

vs $38,071 in 2000

US average: $30,130

1990 – 2024

Per capita income

$11,653

−37%vs 2000

vs $18,435 in 2000

US average: $14,340

Poverty rate

9.2%

+0.5 ptsvs 2000

vs 8.7% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$40,200

−33%inflation adjusted, since 2000

vs $79,400 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$306

−10%inflation adjusted, since 2000

vs $446 in 2000

US average: $450

Owner-occupied

73.8%

−2.6 ptsvs 2000

vs 76.4% in 2000

26.2% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic94.4%(29,580)

Black0.7%(222)

Hispanic / Latino3.9%(1,217)

Asian0.3%(87)

Other0%

1990

White, non-Hispanic98.2%(30,244)

Black0.5%(164)

Hispanic / Latino1.6%(500)

Asian0.1%(44)

Other1.1%(335)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin

Mexican7.3%(1,940)

South American0.3%(71)

Central American0.2%(65)

Salvadoran0.2%(53)

Colombian0.2%(50)

Puerto Rican0.2%(41)

Cuban0.1%(37)

Spaniard0.1%(18)

Venezuelan0.1%(14)

Guatemalan0%(8)

Panamanian0%(4)

Asian origin

Filipino0.2%(53)

Korean0%(13)

Vietnamese0%(10)

Pakistani0%(7)

Japanese0%(6)

Pacific Islander origin

Native Hawaiian0.1%(26)

Ancestry

German33%(8,735)

Irish13.3%(3,526)

English9.8%(2,591)

American7.6%(2,023)

French6.3%(1,655)

Italian5.1%(1,348)

Dutch3.1%(812)

Polish1.9%(496)

Swedish1.6%(424)

French Canadian1.3%(341)

Scottish1%(277)

Norwegian1%(265)

+ 27 more ancestry groups with data

Hungarian0.9%(249)

Danish0.6%(146)

British0.5%(138)

Welsh0.5%(126)

Scotch-Irish0.4%(117)

Russian0.4%(104)

Swiss0.3%(75)

Czech0.3%(69)

Lithuanian0.2%(65)

Finnish0.2%(57)

Belgian0.2%(52)

Greek0.2%(49)

Croatian0.2%(48)

Arab0.2%(40)

Ukrainian0.1%(29)

Slovak0.1%(18)

Slovene0%(12)

Lebanese0%(11)

Canadian0%(10)

Armenian0%(7)

Austrian0%(6)

Portuguese0%(6)

Australian0%(5)

Iranian0%(5)

Serbian0%(4)

Romanian0%(3)

Subsaharan African0%(3)

RANKED:Largest German population · Largest Irish population · Largest English population · Largest American population · Largest Mexican population

Section 05

Education

Bachelor's degree or higher

10.1%

−1.8 ptsvs 2000

vs 11.8% in 2000

US average: 20.3%

High school or higher

73.4%

−6.9 ptsvs 2000

vs 80.3% in 2000

US average: 75.2%

Graduate degree

3.2%

−1.4 ptsvs 2000

vs 4.6% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

22.3 min

+34%vs 2000

vs 16.7 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 married31.2%(3,374)

Married55.6%(6,005)

Widowed3.4%(370)

Divorced9.7%(1,052)

Women 15+

Never married21.7%(2,406)

Married50.2%(5,559)

Widowed12.2%(1,350)

Divorced15.8%(1,754)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

6.0%

−3.0 ptssince 2013

from 9.0% in 2013

US average: 8.4%

Employer-based

50.6%

+0.6 ptssince 2020

from 50.0% in 2020

US average: 54.8%

Direct-purchase

18.3%

−0.5 ptssince 2020

from 18.8% in 2020

US average: 13.8%

Medicare

23.1%

−0.3 ptssince 2020

from 23.4% in 2020

US average: 18.4%

Medicaid

22.1%

−0.2 ptssince 2020

from 22.3% in 2020

US average: 20.9%

VA health care

2.3%

−0.4 ptssince 2020

from 2.7% in 2020

US average: 2.2%

Any private

66.1%

−0.9 ptssince 2020

from 67.0% in 2020

US average: 67.1%

Any public

42.8%

+0.1 ptssince 2020

from 42.7% 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)18.1%(252)

US avg: 26.4%

Gulf War (1990s)19.1%(266)

US avg: 24.3%

Vietnam era36%(501)

US avg: 33.1%

Korean War7.6%(106)

US avg: 4.5%

World War II1.4%(20)

US avg: 1%

Share of the 1,392 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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