Cahokia Heights, IL

Full City Profile · Illinois · St. Louis city County

2.5 /5.0

C+ Fair

17,173 Population 1,088/sq mi density

$37,975 Median Income $19,692 per capita

$56,900 Home Value $121,358 Zillow

$959 Median Rent 37.6% income on rent

57°F Avg Temperature 293 sunny days/yr

6,494 Violent Crime/100K 41,558 property/100K

C+

Overall

2.5 / 5.0

Fair overall score based on economy, affordability, safety and education

Economy

2.1 / 5.0

$37,975 median income, 5.7% unemployment

A+

Affordability

5.0 / 5.0

$56,900 home value, $959/mo rent

Safety

1.0 / 5.0

6,494 violent crimes/100K (1609% above avg)

Education

2.0 / 5.0

11.9% bachelor's degree or higher

Change Over Time (2021–2023)

Population Change

-2.5%

17,631 → 17,196

over 2 years

Annual Pop. Growth

-1.24%

Compound annual growth rate

Population Over Time

Total population for Cahokia Heights across each available Census ACS release.

Projected 2030

Simple projections extrapolating the 2021–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.

Projected Population 2030

15,758

-1,438 from 2023 (17,196)

Year-by-Year Detail

Year	Population	YoY %	Median Income	YoY %
2021	17,631	—	—	—
2023	17,196	-2.5%	$37,975	—

Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.