HomeIllinoisSt. Clair CountyCahokia Heights
Cahokia Heights, Illinois: commercial real estate data.
Cahokia Heights is a Census city of 17,106 people across 15.78 square miles of land, in St. Clair County. Median household income is $33,792, 52.2 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Cahokia Heights
What Cahokia Heights is
- Census place typecity
- Land area15.78 sq mi
- Water area0.65 sq mi
- Population per square mile of land1,084
- County holding the largest share of its areaSt. Clair County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Cahokia Heights
How many people live in Cahokia Heights
- Population17,106
- Median age30.3
- Population under 186,139
- Share under 1835.9 percent
- Population 65 and over1,915
- Share 65 and over11.2 percent
- Households6,053
- Family households3,741
- Share of households that are families61.8 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Cahokia Heights
Income and work in Cahokia Heights
- Median household income$33,792
- Per capita income$20,124
- Civilian labor force7,146
- Employed6,433
- Unemployed713 plus or minus 242
- Unemployment rate10.0 percent plus or minus 3.3
- Adults 25 and over9,476
- Adults 25 and over with a high school diploma or higher85.5 percent
- Adults 25 and over with a bachelor degree or higher13.5 percent plus or minus 3.1
- Adults 25 and over with a graduate degree5.0 percent plus or minus 1.5
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Cahokia Heights
Housing in Cahokia Heights
- Housing units8,469
- Occupied units6,053
- Vacant units2,416
- Vacancy rate28.5 percent
- Owner occupied3,159
- Renter occupied2,894
- Ownership rate52.2 percent
- Median owner-occupied home value$56,000
- Median gross rent, monthly$981
- Annual rent as a share of median income34.8 percent
- Single family units6,843
- Share single family80.8 percent
- Units in buildings of two or more1,341 plus or minus 357
- Share in buildings of two or more15.8 percent plus or minus 4.1
- Mobile homes285 plus or minus 107
- Median year structure built1964
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Cahokia Heights
How Cahokia Heights gets to work
- Workers 16 and over who commute5,621
- Commuting under 15 minutes1,388 plus or minus 329
- Share commuting under 15 minutes24.7 percent plus or minus 5.2
- Commuting 30 minutes or more1,796 plus or minus 462
- Share commuting 30 minutes or more32.0 percent plus or minus 7.5
- Drove alone68.7 percent
- Carpooled12.5 percent plus or minus 6.0
- Public transport5.5 percent plus or minus 4.0
- Walked0.0 percent
- Worked from home8.5 percent plus or minus 3.4
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Cahokia Heights
Flood risk in Cahokia Heights
- NFIP communityCity of Cahokia Heights
- NFIP community number170620
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date11/05/03
The City of Cahokia Heights participates in the National Flood Insurance Program as community 170620 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
St. Clair County, not Cahokia Heights
St. Clair County context, not Cahokia Heights figures
- Establishments in St. Clair County4,973
- Covered employment, St. Clair County89,981
- Average annual pay, St. Clair County$57,001
- Housing units permitted, St. Clair County740
Every figure in this section is published for St. Clair County as a whole and is not a measurement of Cahokia Heights.
All St. Clair County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Cahokia Heights questions, answered from the record.
How many people live in Cahokia Heights, Illinois?
17,106, in 6,053 households. Cahokia Heights city covers 15.78 square miles of land, which is 1,084 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Cahokia Heights in?
St. Clair County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Cahokia Heights?
$33,792. The median owner-occupied home is valued at $56,000. Median gross rent is $981 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Cahokia Heights in the National Flood Insurance Program?
Yes. Cahokia Heights appears in the FEMA Community Status Book as Cahokia Heights, city of, community 170620, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Cahokia Heights figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for St. Clair County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Cahokia Heights.
Is zoning published for Cahokia Heights?
No. Nothing on this page presents parcel level zoning.