COUNTY · 2000 CENSUS

St. Clair County

Missouri · 9,652 residents · 675 sq mi

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The short version

With 9,652 people, St. Clair County is a county in Missouri. The median age is 43.9, about 9 years above the US median. Four-year degrees are less common here than nationally, at 9% of adults. 79% of homes are owner-occupied. Households here earn about 33% less than in Missouri as a whole. The typical home is worth $58,100, having more than doubled since 1990.

At a glance

Lower income

below the US median

US median: $42,589

Older

median age 43.9

US median: 35.2

Less educated

9% hold a bachelor's degree

US average: 24%

Less affordable

home values up 63%, inflation adjusted

US median home: $120,530

Section 01

Population & growth

Total population

9,652

+14%since 1990

from 8,457 in 1990

1990 – 2025

Median age

43.9

+4%since 1990

from 42.3 in 1990

US average: 35.2

Land area

675 sq mi

Population, 1990 – 2024

202410K

Age distribution, 2000

Under 55.5%(530)

US avg: 6.8%

5 to 96.2%(594)

US avg: 7.3%

10 to 147%(674)

US avg: 7.3%

15 to 196.2%(595)

US avg: 7.2%

20 to 243.8%(369)

US avg: 6.7%

25 to 349.3%(894)

US avg: 14.2%

35 to 4413.6%(1,314)

US avg: 16%

45 to 5413.4%(1,289)

US avg: 13.4%

55 to 6413.9%(1,337)

US avg: 8.6%

65 to 7411.2%(1,081)

US avg: 6.5%

75 to 847.1%(683)

US avg: 4.4%

85 and over3%(292)

US avg: 1.5%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$25,321

+11%inflation adjusted, since 1990

from $17,265 in 1990

US average: $42,589

1990 – 2024

Per capita income

$14,025

+54%since 1990

from $9,097 in 1990

US average: $21,522

Poverty rate

19.6%

−2.7 ptssince 1990

from 22.4% in 1990

US average: 12.4%

Section 03

Housing

Median home value

$58,100

+63%inflation adjusted, since 1990

from $27,000 in 1990

US average: $120,530

1990 – 2024

Median gross rent

$290

+1%inflation adjusted, since 1990

from $217 in 1990

US average: $602

Owner-occupied

79.4%

+4.2 ptssince 1990

from 75.2% in 1990

20.6% rent

Section 04

Race & ethnicity

1990

White, non-Hispanic99.1%(8,378)

Black0.2%(13)

Hispanic / Latino0.7%(58)

Asian0.3%(26)

2000

White, non-Hispanic96.7%(9,338)

Black0.2%(20)

Hispanic / Latino1%(95)

Asian0.1%(14)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin

Mexican1.6%(150)

Central American0.4%(35)

Salvadoran0.2%(23)

Panamanian0.1%(12)

South American0.1%(9)

Venezuelan0.1%(9)

Cuban0%(4)

Spaniard0%(1)

Asian origin

Vietnamese0.1%(12)

Korean0.1%(7)

Filipino0.1%(5)

Ancestry

German21%(2,011)

English11.6%(1,109)

Irish10.8%(1,034)

American9.7%(934)

Italian1.6%(152)

French1.4%(133)

Swedish0.8%(80)

Scotch-Irish0.8%(79)

Scottish0.8%(75)

Dutch0.8%(74)

Welsh0.6%(62)

Croatian0.6%(56)

+ 20 more ancestry groups with data

Norwegian0.4%(41)

Polish0.4%(35)

British0.3%(30)

Arab0.2%(20)

Syrian0.2%(20)

Danish0.2%(19)

Swiss0.2%(18)

Hungarian0.2%(17)

Turkish0.2%(16)

Russian0.2%(15)

Romanian0.1%(14)

Austrian0.1%(13)

Greek0.1%(13)

Czech0.1%(11)

Subsaharan African0.1%(11)

Canadian0.1%(9)

West Indian0.1%(9)

Belgian0.1%(5)

French Canadian0%(2)

Portuguese0%(1)

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

Section 05

Education

Bachelor's degree or higher

9.0%

+1.1 ptssince 1990

from 7.9% in 1990

US average: 24.4%

High school or higher

73.1%

+12.3 ptssince 1990

from 60.8% in 1990

US average: 80.3%

Graduate degree

3.7%

+0.9 ptssince 1990

from 2.8% in 1990

US average: 8.8%

Section 06

Commute & transportation

Average commute

23.4 min

−22%since 1990

from 30.1 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 married20.3%(784)

Married63.3%(2,448)

Widowed4%(154)

Divorced12.4%(480)

Women 15+

Never married11.1%(441)

Married62.4%(2,489)

Widowed16.8%(668)

Divorced9.8%(390)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

10.6%

−7.9 ptssince 2013

from 18.5% in 2013

US average: 8.4%

Employer-based

43.8%

+7.4 ptssince 2020

from 36.4% in 2020

US average: 54.8%

Direct-purchase

18.1%

−1.9 ptssince 2020

from 20.0% in 2020

US average: 13.8%

Medicare

28.1%

−3.5 ptssince 2020

from 31.6% in 2020

US average: 18.4%

Medicaid

21.7%

+1.7 ptssince 2020

from 20.0% in 2020

US average: 20.9%

VA health care

4.5%

Unchangedsince 2020

from 4.5% in 2020

US average: 2.2%

Any private

60.4%

+3.7 ptssince 2020

from 56.7% in 2020

US average: 67.1%

Any public

45.9%

−1.2 ptssince 2020

from 47.1% 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)16.3%(107)

US avg: 26.4%

Gulf War (1990s)30.2%(199)

US avg: 24.3%

Vietnam era36.9%(243)

US avg: 33.1%

Korean War0.6%(4)

US avg: 4.5%

World War II2.3%(15)

US avg: 1%

Share of the 658 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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