COUNTY · 2000 CENSUS

Carroll County

Illinois · 16,674 residents · 445 sq mi

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The short version

With 16,674 people, Carroll County is a county in Illinois. At a median age of 40.8, this is an older place than the country as a whole. 13% of adults hold a bachelor's degree or higher. Owners hold 77% of the housing stock. Home values have more than doubled since 1990, reaching $71,100. That trails the Illinois median by roughly 20%.

At a glance

Lower income

below the US median

US median: $42,589

Older

median age 40.8

US median: 35.2

Less educated

13% hold a bachelor's degree

US average: 24%

Less affordable

home values up 40%, inflation adjusted

US median home: $120,530

Section 01

Population & growth

Total population

16,674

−1%since 1990

from 16,805 in 1990

1990 – 2025

Median age

40.8

+9%since 1990

from 37.4 in 1990

US average: 35.2

Land area

445 sq mi

Population, 1990 – 2024

202416K

Age distribution, 2000

Under 55.5%(925)

US avg: 6.8%

5 to 96.5%(1,080)

US avg: 7.3%

10 to 147.4%(1,232)

US avg: 7.3%

15 to 197.1%(1,187)

US avg: 7.2%

20 to 244.3%(717)

US avg: 6.7%

25 to 3410.5%(1,756)

US avg: 14.2%

35 to 4414.9%(2,485)

US avg: 16%

45 to 5413.7%(2,292)

US avg: 13.4%

55 to 6410.7%(1,789)

US avg: 8.6%

65 to 7410%(1,662)

US avg: 6.5%

75 to 846.8%(1,131)

US avg: 4.4%

85 and over2.5%(418)

US avg: 1.5%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$37,148

+9%inflation adjusted, since 1990

from $25,758 in 1990

US average: $42,589

1990 – 2024

Per capita income

$18,688

+51%since 1990

from $12,358 in 1990

US average: $21,522

Poverty rate

9.6%

−2.1 ptssince 1990

from 11.7% in 1990

US average: 12.4%

Section 03

Housing

Median home value

$71,100

+40%inflation adjusted, since 1990

from $38,600 in 1990

US average: $120,530

1990 – 2024

Median gross rent

$385

+2%inflation adjusted, since 1990

from $286 in 1990

US average: $602

Owner-occupied

76.7%

+4.9 ptssince 1990

from 71.8% in 1990

23.3% rent

Section 04

Race & ethnicity

1990

White, non-Hispanic98%(16,475)

Black1.1%(182)

Hispanic / Latino2.2%(365)

Asian0.2%(42)

2000

White, non-Hispanic95.9%(15,988)

Black0.5%(90)

Hispanic / Latino2%(340)

Asian0.4%(68)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin

Mexican2.6%(408)

Puerto Rican0.4%(56)

South American0.2%(33)

Central American0.2%(29)

Colombian0.1%(21)

Costa Rican0.1%(16)

Ecuadorian0.1%(12)

Honduran0%(7)

Guatemalan0%(3)

Salvadoran0%(3)

Cuban0%(2)

Spaniard0%(1)

Asian origin

Korean0.3%(48)

Asian Indian0.1%(20)

Laotian0.1%(16)

Chinese0.1%(13)

Pakistani0.1%(11)

Japanese0%(3)

Filipino0%(3)

Taiwanese0%(2)

Vietnamese0%(1)

Ancestry

German30.7%(4,781)

Irish12.9%(2,003)

English8.5%(1,324)

American8.3%(1,296)

Dutch4.1%(645)

Swedish2.8%(435)

Italian2.6%(408)

Polish2.4%(372)

French1.7%(269)

Scottish1.4%(218)

Norwegian1%(159)

Welsh0.9%(137)

+ 23 more ancestry groups with data

Greek0.8%(129)

Swiss0.6%(93)

Danish0.6%(87)

Czech0.5%(74)

French Canadian0.4%(59)

Finnish0.3%(53)

Scotch-Irish0.2%(36)

Hungarian0.2%(32)

Belgian0.2%(30)

Arab0.2%(29)

Moroccan0.2%(26)

Lithuanian0.1%(19)

British0.1%(18)

Austrian0.1%(16)

Canadian0.1%(15)

Slovak0.1%(14)

Russian0.1%(12)

Croatian0%(6)

Romanian0%(4)

Serbian0%(4)

Ukrainian0%(4)

West Indian0%(4)

Trinidadian & Tobagonian0%(4)

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

Section 05

Education

Bachelor's degree or higher

13.1%

+2.6 ptssince 1990

from 10.6% in 1990

US average: 24.4%

High school or higher

83.3%

+7.3 ptssince 1990

from 76.0% in 1990

US average: 80.3%

Graduate degree

3.7%

+0.7 ptssince 1990

from 3.1% in 1990

US average: 8.8%

Section 06

Commute & transportation

Average commute

16.7 min

−34%since 1990

from 25.4 min in 1990

US average: 17.6

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status

Men 15+

Never married23.7%(1,555)

Married62.8%(4,113)

Widowed3.3%(216)

Divorced10.2%(665)

Women 15+

Never married15.1%(1,040)

Married62.2%(4,274)

Widowed13.5%(928)

Divorced9.2%(630)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

5.8%

−6.1 ptssince 2013

from 11.9% in 2013

US average: 8.4%

Employer-based

51.0%

−2.7 ptssince 2020

from 53.7% in 2020

US average: 54.8%

Direct-purchase

16.7%

−4.2 ptssince 2020

from 20.9% in 2020

US average: 13.8%

Medicare

27.0%

−0.3 ptssince 2020

from 27.3% in 2020

US average: 18.4%

Medicaid

20.9%

+4.4 ptssince 2020

from 16.5% in 2020

US average: 20.9%

VA health care

2.0%

−1.9 ptssince 2020

from 3.9% in 2020

US average: 2.2%

Any private

64.3%

−6.8 ptssince 2020

from 71.1% in 2020

US average: 67.1%

Any public

45.8%

+4.0 ptssince 2020

from 41.8% 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)15.7%(174)

US avg: 26.4%

Gulf War (1990s)13.1%(145)

US avg: 24.3%

Vietnam era35.9%(397)

US avg: 33.1%

Korean War6.1%(67)

US avg: 4.5%

World War II0.2%(2)

US avg: 1%

Share of the 1,105 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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