Cahokia Heights city, Illinois Demographics & Population 2026

Population Overview

Cahokia Heights city is a small city located in Illinois. The total population is 17,173. It ranks as the 148th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Cahokia Heights city is 32.8 years. This is 16% lower than the state median of 38.9 years. With 32.9% of the population under 18, Cahokia Heights city has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Cahokia Heights city is $37,975. This is 54% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 52% lower. The poverty rate stands at 32.7%. This is 179% higher than the state poverty rate of 11.7%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 9.3%. This is 61% higher than the state rate of 5.8%. The median home value is $56,900. Housing costs are 77% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.5x, Cahokia Heights city is one of the most affordable housing markets in the area. 52.6% of occupied housing units are owner-occupied. This homeownership rate is 21% lower than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Cahokia Heights city is Black or African American, making up 71.1% of the population. White (non-Hispanic) residents account for 20.3%. The White (non-Hispanic) population (20.3%) is well below the state average of 58.8%. The Black or African American population is significantly higher than the state average (71.1% vs 13.6%). The Hispanic or Latino population (2.1%) is well below the state average of 18.5%. The Asian population (1.0%) is well below the state average of 5.8%.

Education

11.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 68% lower than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.0%.

Data Sources & Methodology

All demographic data for Cahokia Heights city, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. For official data, visit data.census.gov.