COUNTY · 1990 CENSUS

Marion County

Illinois · 41,561 residents · 573 sq mi

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The short version

With 41,561 people, Marion County is a county in Illinois. The typical home is worth $35,000. 76% of homes are owner-occupied. About 10% of adults have finished a four-year degree. Households here earn about 29% less than in Illinois as a whole. Renters pay $295 a month at the median.

At a glance

Lower income

below the US median

US median: $30,130

Older

median age 35.1

US median: 33.0

Less educated

10% hold a bachelor's degree

US average: 20%

More affordable

home values down 14%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

41,561

Unchangedvs 2000

vs 41,691 in 2000

1990 – 2025

Median age

35.1

−9%vs 2000

vs 38.4 in 2000

US average: 33.0

Land area

573 sq mi

Population, 1990 – 2024

202437K

Age distribution, 1990

Under 57%(2,924)

US avg: 7.3%

5 to 97.7%(3,209)

US avg: 7.3%

10 to 147.6%(3,151)

US avg: 6.9%

15 to 197.1%(2,931)

US avg: 7.1%

20 to 245.5%(2,269)

US avg: 7.5%

25 to 3415%(6,233)

US avg: 17.5%

35 to 4414%(5,819)

US avg: 15.1%

45 to 549.9%(4,135)

US avg: 10.2%

55 to 649.2%(3,809)

US avg: 8.5%

65 to 749.1%(3,777)

US avg: 7.3%

75 to 846.2%(2,575)

US avg: 4%

85 and over1.8%(729)

US avg: 1.2%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$22,813

−15%inflation adjusted, since 2000

vs $35,227 in 2000

US average: $30,130

1990 – 2024

Per capita income

$11,500

−33%vs 2000

vs $17,235 in 2000

US average: $14,340

Poverty rate

16.4%

+5.1 ptsvs 2000

vs 11.3% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$35,000

−14%inflation adjusted, since 2000

vs $53,500 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$295

+5%inflation adjusted, since 2000

vs $371 in 2000

US average: $450

Owner-occupied

76.2%

−0.4 ptsvs 2000

vs 76.6% in 2000

23.8% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic93.4%(38,951)

Black3.8%(1,593)

Hispanic / Latino0.9%(378)

Asian0.6%(235)

Other0%

1990

White, non-Hispanic94.8%(39,417)

Black3.5%(1,462)

Hispanic / Latino0.5%(207)

Asian1.1%(452)

Other0.6%(230)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin

Mexican1.3%(475)

Central American0.4%(132)

Puerto Rican0.3%(121)

Honduran0.2%(59)

Costa Rican0.1%(51)

South American0.1%(32)

Peruvian0.1%(30)

Salvadoran0.1%(22)

Spaniard0%(17)

Cuban0%(15)

Colombian0%(2)

Asian origin

Filipino0.3%(105)

Korean0.2%(65)

Chinese0.2%(57)

Vietnamese0%(16)

Thai0%(10)

Asian Indian0%(4)

Japanese0%(2)

Pacific Islander origin

Native Hawaiian0%(17)

Ancestry

German24.2%(8,938)

English13.6%(5,040)

Irish12.3%(4,552)

American8%(2,948)

Polish2.3%(849)

Italian1.8%(648)

Dutch1.2%(445)

Scottish1.2%(430)

Welsh1.1%(420)

French1%(382)

Scotch-Irish0.8%(293)

Norwegian0.4%(160)

+ 25 more ancestry groups with data

Swedish0.4%(151)

Czech0.4%(142)

Hungarian0.3%(104)

British0.2%(92)

Swiss0.2%(88)

Subsaharan African0.1%(51)

Lithuanian0.1%(49)

Croatian0.1%(37)

Russian0.1%(37)

Greek0.1%(35)

Arab0.1%(31)

French Canadian0.1%(29)

Finnish0.1%(23)

Danish0.1%(19)

West Indian0%(15)

Iraqi0%(12)

Jamaican0%(12)

Egyptian0%(10)

Portuguese0%(10)

Lebanese0%(9)

Belgian0%(8)

Nigerian0%(8)

Austrian0%(5)

Turkish0%(4)

Slovak0%(2)

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

Section 05

Education

Bachelor's degree or higher

9.6%

−2.5 ptsvs 2000

vs 12.1% in 2000

US average: 20.3%

High school or higher

70.1%

−9.0 ptsvs 2000

vs 79.1% in 2000

US average: 75.2%

Graduate degree

3.3%

−0.8 ptsvs 2000

vs 4.1% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

17.8 min

+30%vs 2000

vs 13.7 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 married32.1%(4,677)

Married50.1%(7,304)

Widowed5.2%(757)

Divorced12.7%(1,854)

Women 15+

Never married24.3%(3,712)

Married50.7%(7,747)

Widowed11.6%(1,772)

Divorced13.5%(2,061)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

6.4%

−5.1 ptssince 2013

from 11.5% in 2013

US average: 8.4%

Employer-based

51.3%

+3.0 ptssince 2020

from 48.3% in 2020

US average: 54.8%

Direct-purchase

12.2%

−1.1 ptssince 2020

from 13.3% in 2020

US average: 13.8%

Medicare

22.4%

+0.4 ptssince 2020

from 22.0% in 2020

US average: 18.4%

Medicaid

28.1%

−1.7 ptssince 2020

from 29.8% in 2020

US average: 20.9%

VA health care

3.4%

−0.9 ptssince 2020

from 4.3% in 2020

US average: 2.2%

Any private

62.5%

+2.2 ptssince 2020

from 60.3% in 2020

US average: 67.1%

Any public

47.1%

−2.2 ptssince 2020

from 49.3% 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)25.4%(559)

US avg: 26.4%

Gulf War (1990s)23%(506)

US avg: 24.3%

Vietnam era31.8%(699)

US avg: 33.1%

Korean War7.2%(159)

US avg: 4.5%

World War II2%(45)

US avg: 1%

Share of the 2,199 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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