Cahokia, IL demographics:
population, income, and more

Total population
10,312
-1.5% year-over-year change
Median household income
$33,838/yr
-14.4% year-over-year change
Housing units
5,133
-2.1% year-over-year change

Cahokia population

How many people live in Cahokia

Cahokia is home to 10,312 residents, according to the most recent Census data. Gender-wise, 48.2% of Cahokia locals are male, and 51.8% are female.

Total population
10,312
-1.5% year-over-year change
Gender ratio
Male
48.2%
4,966
Female
51.8%
5,346
Value Percent YoY change
Male 4,966 48.2% 0.1%
Female 5,346 51.8% -2.9%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Cahokia is 30, with the population distributed as follows: about 31.2% are children under 15, then 13.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 24.5% of the population, while another 20.7% fall into the 45 to 64 bracket. Finally, around 9.8% are 65 or older.

Median age
30.3
Age breakdown
Under 15
31.2%
15 to 24
13.7%
25 to 44
24.5%
45 to 64
20.7%
Over 65
9.8%
Value Percent YoY change
Under 15 3,219 31.2% 10.2%
15 to 24 1,414 13.7% 15.5%
25 to 44 2,531 24.5% 4.8%
45 to 64 2,138 20.7% -17.6%
Over 65 1,010 9.8% -23.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Cahokia, 98.4% of the population are US-born citizens, while 1.1% have gained naturalized citizenship. At the same time, 0.4% of residents are non-citizens. As for race, 28.7% of locals are Caucasian, 59.1% are African American and 0.6% have Asian roots. There’s also a share of 9.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.4%
Non-U.S.-born citizens
1.1%
Non-citizens
0.4%
Value Percent YoY change
U.S.-born citizens 10,152 98.4% -1.0%
Non-U.S.-born citizens 115 1.1% 1.8%
Non-citizens 45 0.4% -56.7%
Racial breakdown
White
28.7%
Black or African American
59.1%
American Indian and Alaska Native
0%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
9.1%
Other
2.4%
Value Percent
White 2,962 28.7%
Black or African American 6,093 59.1%
Asian 64 0.6%
Two or more races 943 9.1%
Other 250 2.4%

Households in Cahokia

A peek inside Cahokia households

Cahokia has 3,676 households, with an average of 3 members in each. Of these, 63.1% are families, while the remaining 36.9% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,676
-4.9% year-over-year change
Average people per household
3
Non-family households
1,355
Family households
2,321
Value Percent YoY change
Non-family households 1,355 36.9% -3.1%
Family households 2,321 63.1% -6.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Cahokia

The housing landscape of Cahokia

Cahokia's housing consists of 5,133 units, with 82.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.3% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 4.1% of the housing landscape.

Housing units
5,133
-2.1% year-over-year change
Housing types
Value Percent
1 unit, detached 4,222 82.3%
1 unit, attached 118 2.3%
2 units 299 5.8%
3 or 4 units 81 1.6%
5 to 9 units 142 2.8%
10 to 19 units 15 0.3%
50 or more units 45 0.9%
Mobile home 210 4.1%
Homes built since 2020
42
27.3% year-over-year change

The age of buildings in Cahokia

In Cahokia, the median construction year is 1965. About 5.5% of homes were built before the 1940s, with another 7.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 2.1% of homes were added from 2000 to 2009, 4.6% between 2010 and 2019, and 0.8% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 282 5.5% 39.6%
Built between 1940 and 1949 400 7.8% -20.8%
Built between 1950 and 1959 1,273 24.8% -21.0%
Built between 1960 and 1969 1,302 25.4% 12.6%
Built between 1970 and 1979 755 14.7% 33.4%
Built between 1980 and 1989 559 10.9% 4.1%
Built between 1990 and 1999 173 3.4% -43.6%
Built between 2000 and 2009 110 2.1% -13.4%
Built between 2010 and 2019 238 4.6% 22.7%
Built in 2020 or later 42 0.8% 27.3%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Cahokia occupancy rates

Out of the 3,676 occupied housing units in Cahokia, 55.5% are owner-occupied, while 44.6% are lived in by tenants. Meanwhile, 28.4% of all homes on the local market sit vacant.

Occupied housing units
3,676
-4.9% year-over-year change
Occupancy breakdown
Renter occupied
1,638
Owner occupied
2,039
Value Percent YoY
change
Renter occupied 1,638 44.6% 0.0%
Owner occupied 2,039 55.5% -8.5%
Unoccupied housing units
28.4%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Cahokia housing costs

Housing costs in Cahokia come to a median of $826 per month, while tenants specifically pay a median gross rent of $999.

Median housing costs per month
$826/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Cahokia
$999/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Cahokia

Cahokia education at a glance

About 58.1% of the population in Cahokia went to high school, while 20.9% pursued college studies. Another 6.6% earned an associate degree and 8.9% hold a bachelor’s. Meanwhile, 3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 166 2.5% -18.2%
High school diploma 3,806 58.1% -3.1%
College diploma 1,368 20.9% -15.5%
Associate degree 430 6.6% -22.1%
Bachelor's degree 584 8.9% 22.4%
Graduate degree 195 3% -29.1%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Cahokia

How much people earn in Cahokia

The average annual household income in Cahokia was $51,404 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -2.9% change from the previous year. At the same time, the median income stood at $33,838, reflecting a -14.4% shift over the same period.

Average household income in Cahokia
$51,404/year
-2.9% year-over-year change
Median household income in Cahokia
$33,838/year
-14.4% year-over-year change

Cahokia income by age

In Cahokia, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $30,889. Those with someone between 45 and 64 in charge, often well established professionally, earn $43,295 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $33,496, while those led by someone over 65, many of whom may be retired, have about $35,978 in earnings. Overall, 68.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $33,496 18.5%
25 - 44 $30,889 6.7%
45 - 64 $43,295 -17.5%
Over 65 $35,978 -9.6%
Above poverty level
6,480
Below poverty level
3,012
Value Percent YoY
change
Above poverty level 6,480 68.3% -6.3%
Below poverty level 3,012 31.7% 3.5%

Employment in Cahokia

Workforce and job types in Cahokia

69.8% of the working population are employed in professional or administrative positions, while 30.2% are in hands-on or service-based jobs. Also, 1.2% run their own businesses, 79.8% are employed by private companies, and 12.6% work in the public sector.

Workforce demographics

White collar
2,838
Blue collar
1,230
Value Percent YoY change
White collar 2,838 69.8% -1.6%
Blue collar 1,230 30.2% -11.2%
Employer type
Self employees
1.2%
Private companies
79.8%
Governmental workers
12.6%
Not for profit companies
6.4%
Value Percent YoY change
Self employees 48 1.2% -17.2%
Private companies 3,245 79.8% -5.3%
Governmental workers 514 12.6% 5.5%
Not for profit companies 262 6.4% -11.2%

Transportation in Cahokia

How people get around in Cahokia

Commuting methods vary: 93.1% of residents travel by personal vehicle and 0.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 3,248 93.1% -2.5%
Bus or trolleybus 189 5.4% -29.2%
Railroad 44 1.3% 46.7%
Walk 9 0.3% -91.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Cahokia by zipcode?

Zipcode Population Number of households Median income Average income
62206 12,959 4,620 $33,838 $51,434

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FAQs about Cahokia demographics 

What is the total population of Cahokia?

Cahokia has a total population of 10,312 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.5% compared to a year ago.

What is the gender ratio in Cahokia?

The gender ratio in Cahokia is as follows:
  • 48.2% males (4,966 residents)
  • 51.8% females (5,346 residents)

What is the median age in Cahokia?

The median age in Cahokia is 30.3.

What is the age distribution of the population in Cahokia?

The age distribution in Cahokia is as follows:
  • Under 15: 31.2% (3,219 residents)
  • Ages 15-24: 13.7% (1,414 residents)
  • Ages 25-44: 24.5% (2,531 residents)
  • Ages 45-64: 20.7% (2,138 residents)
  • Over 65: 9.8% (1,010 residents)

What is the racial and ethnic makeup of Cahokia?

The racial and ethnic makeup of Cahokia is as follows:
  • White: 28.7% (2,962 residents)
  • Black or African American: 59.1% (6,093 residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 0.6% (64 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 9.1% (943 residents)
  • Other: 2.4% (250 residents)

What percentage of the population in Cahokia are U.S.-born citizens?

U.S.-born citizens represent 98.4% of the population in Cahokia.

How many housing units are there in Cahokia?

There are 5,133 housing units in Cahokia, reflecting a -2.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Cahokia and what is the average household size?

Cahokia has a total of 3,676 households, with an average of 3 people in each.

What is the median household income in Cahokia?

Cahokia has a median household income of $33,838, representing a -14.4% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Cahokia?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.8% (2,838 residents)
  • Blue-collar workers: 30.2% (1,230 residents)

Places of employment:
  • Self-employed: 1.2% (48 residents)
  • Private companies: 79.8% (3,245 residents)
  • Governmental workers: 12.6% (514 residents)
  • Not-for-profit companies: 6.4% (262 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025