Living In St. Clair County, IL

St. Clair County Summary

Life in St. Clair County research summary. HomeSnacks has been researching the quality of life in St. Clair County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in St. Clair County:

The population in St. Clair County is 254,777.
The median home value in St. Clair County is $191,043.
The median income in St. Clair County is $70,178.
The median rent in St. Clair County is $1,032.
The unemployment rate in St. Clair County is 5.7%.
The poverty rate in St. Clair County is 13.6%.
The average high in St. Clair County is 74.1° and there are 103.2 inches of rainfall annually.

Cities & Towns
Weather
Images
Map
Demographics & Statisics

Cities & Towns in St. Clair County

List Of Cities & Towns in St. Clair County

Belleville, IL Population 41,722

O'Fallon, IL Population 32,139

Collinsville, IL Population 24,126

East St. Louis, IL Population 18,278

Fairview Heights, IL Population 16,255

Swansea, IL Population 14,603

Shiloh, IL Population 14,109

Columbia, IL Population 11,063

Mascoutah, IL Population 8,743

Lebanon, IL Population 4,431

Freeburg, IL Population 4,336

Scott AFB, IL Population 4,195

Caseyville, IL Population 4,170

Millstadt, IL Population 4,013

Dupo, IL Population 3,914

Smithton, IL Population 3,512

New Baden, IL Population 3,493

Madison, IL Population 2,788

Fairmont City, IL Population 2,354

New Athens, IL Population 1,937

Washington Park, IL Population 1,728

Marissa, IL Population 1,133

Brooklyn, IL Population 811

St. Libory, IL Population 612

Hecker, IL Population 556

Lenzburg, IL Population 513

Fayetteville, IL Population 381

Summerfield, IL Population 358

Sauget, IL Population 299

East Carondelet, IL Population 219

Alorton, IL Population 0

Centreville, IL Population 0

Cahokia, IL Population 0

Paderborn, IL Population 0

Adjuntas , IL Population 0

Adona , IL Population 0

Adin , IL Population 0

Map Of St. Clair County

St. Clair County, IL Weather

The average high in St. Clair County is 74.1°.
There are 79.86 nice days each year.
Expect an average of 103.2 inches of rain each year with 4.8 inches of snow.
There is an average of 5:13 hours of sun each day in St. Clair County.

Stat	St. Clair County
Mean High	74.1
Nice Days	79.86
Rainfall	103.2
Snowfall	4.8
Sunny Hours	5:13

74.1°
Average High

103.2
Inches of Rain

St. Clair County Photos

Source: Public Domain

Source: Public Domain

Source: Wikipedia User Bill Whittaker (talk) | CC BY-SA 3.0

Source: Wikipedia User Rklawton | CC BY-SA 3.0

Source: Public Domain

Source: Wikipedia User Tristan Denyer20:57, 21 D | GFDL

St. Clair County Demographics

Population over time in St. Clair County

The current population in St. Clair County is 254,777. The population has decreased -1.4% from 2019.

Year	Population	% Change
2023	258,597	-1.0%
2022	261,186	-0.4%
2021	262,338	-

Gender in St. Clair County

St. Clair County is 51.5% female with 131,214 female residents.
St. Clair County is 48.5% male with 123,563 male residents.

Female

51.5% (131,214)

Male

48.5% (123,563)

Gender	St. Clair County	IL	USA
Female	51.5%	50.6%	50.5%
Male	48.5%	49.4%	49.5%

Race / Ethnicity in St. Clair County

St. Clair County is:

59.5% White with 151,513 White residents.
27.8% African American with 70,841 African American residents.
0.2% American Indian with 571 American Indian residents.
1.5% Asian with 3,931 Asian residents.
0.0% Hawaiian with 51 Hawaiian residents.
0.5% Other with 1,276 Other residents.
5.5% Two Or More with 13,994 Two Or More residents.
4.9% Hispanic with 12,600 Hispanic residents.

White

59.5% (151,513)

African American

27.8% (70,841)

American Indian

0.2% (571)

Asian

1.5% (3,931)

Hawaiian

0.0% (51)

Other

0.5% (1,276)

Two Or More

5.5% (13,994)

Hispanic

4.9% (12,600)

Table: St. Clair County By Race

Race	St. Clair County	IL	USA
White	59.5%	58.7%	58.2%
African American	27.8%	13.6%	12.0%
American Indian	0.2%	0.1%	0.5%
Asian	1.5%	5.8%	5.7%
Hawaiian	0.0%	0.0%	0.2%
Other	0.5%	0.3%	0.5%
Two Or More	5.5%	3.0%	3.9%
Hispanic	4.9%	18.5%	19.0%

Household Income For St. Clair County, Illinois

5.8% of households in St. Clair County earn Less than $10,000.
3.7% of households in St. Clair County earn $10,000 to $14,999.
7.9% of households in St. Clair County earn $15,000 to $24,999.
7.2% of households in St. Clair County earn $25,000 to $34,999.
12.5% of households in St. Clair County earn $35,000 to $49,999.
16.0% of households in St. Clair County earn $50,000 to $74,999.
13.1% of households in St. Clair County earn $75,000 to $99,999.
15.9% of households in St. Clair County earn $100,000 to $149,999.
9.3% of households in St. Clair County earn $150,000 to $199,999.
8.7% of households in St. Clair County earn $200,000 or more.

Less than $10,000

5.8% (14,724)

$10,000 to $14,999

3.7% (9,318)

$15,000 to $24,999

7.9% (20,178)

$25,000 to $34,999

7.2% (18,334)

$35,000 to $49,999

12.5% (31,761)

$50,000 to $74,999

16.0% (40,639)

$75,000 to $99,999

13.1% (33,421)

$100,000 to $149,999

15.9% (40,420)

$150,000 to $199,999

9.3% (23,786)

$200,000 or more

8.7% (22,191)

Income	St. Clair County	IL	USA
Less than $10,000	5.8%	5.2%	4.9%
$10,000 to $14,999	3.7%	3.4%	3.6%
$15,000 to $24,999	7.9%	6.2%	6.6%
$25,000 to $34,999	7.2%	6.5%	6.8%
$35,000 to $49,999	12.5%	9.9%	10.4%
$50,000 to $74,999	16.0%	15.1%	15.7%
$75,000 to $99,999	13.1%	12.7%	12.7%
$100,000 to $149,999	15.9%	17.9%	17.4%
$150,000 to $199,999	9.3%	9.9%	9.3%
$200,000 or more	8.7%	13.1%	12.6%

Highest level of educational attainment in St. Clair County for adults over 25

1.0% of adults in St. Clair County completed < 9th grade.
5.0% of adults in St. Clair County completed 9-12th grade.
27.0% of adults in St. Clair County completed high school / ged.
24.0% of adults in St. Clair County completed some college.
11.0% of adults in St. Clair County completed associate's degree.
18.0% of adults in St. Clair County completed bachelor's degree.
11.0% of adults in St. Clair County completed master's degree.
2.0% of adults in St. Clair County completed professional degree.
1.0% of adults in St. Clair County completed doctorate degree.

< 9th Grade

0% (2,547)

9-12th Grade

5% (12,738)

High School / GED

27% (68,789)

Some College

24% (61,146)

Associate's Degree

11% (28,025)

Bachelor's Degree

18% (45,859)

Master's Degree

11% (28,025)

Professional Degree

2% (5,095)

Doctorate Degree

1% (2,547)

Education	St. Clair County	IL	USA
< 9th Grade	0%	5%	5%
9-12th Grade	5%	5%	6%
High School / GED	27%	25%	26%
Some College	24%	20%	19%
Associate's Degree	11%	8%	9%
Bachelor's Degree	18%	22%	21%
Master's Degree	11%	11%	10%
Professional Degree	2%	2%	2%
Doctorate Degree	1%	2%	2%