Illinois · Census place 15599
Collinsville, IL population, income and ZIP codes
Quick answer
The population of the city of Collinsville, Illinois (Collinsville, IL — Census place “Collinsville city”) is 24,126 residents, ranking #95 of 1462 places in Illinois. Median household income is $65,170, the median home is worth $157,700 and median gross rent runs $979 a month. Looking for the Collinsville Illinois ZIP code list? 1 ZIP codes serve Collinsville, IL: 62234.
- Population
- 24,126Collinsville city residents
- Median household income
- $65,170Past 12 months, inflation adjusted
- Median home value
- $157,700Owner-occupied units
- Median gross rent
- $979Rent plus utilities, monthly
- Median age
- 39.7 yrsAll residents
- Homeownership rate
- 64.8%Owner-occupied households
Collinsville ZIP codes (Illinois)
Census ZCTAs whose delivery area overlaps Collinsville.
The Collinsville IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Collinsville city
Housing cost measured against local earnings.
A household earning the Collinsville city median would spend about 18% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 2.4× the median household income; nationally that ratio sits near 4.5×. Poverty affects 13% of residents and 64.8% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Collinsville city, IL in context
How this area compares with national benchmarks.
Collinsville city is a mid-size town in Illinois, with 24,126 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #95 of 1,462 ranked by population — larger than 93% of them. The median age here is 39.7 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Collinsville city earn a median of $65,170 a year, 17% below the national figure of $78,538 and 12% below the $74,244 median for the 698 Illinois cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 13% of residents here, above the 12.4% national rate.
The typical owner-occupied home in Collinsville city is valued at $157,700, 48% below the national figure and 12% below the $179,100 peer median, while median gross rent runs $979 a month, 30.4% below the national figure, or roughly $11,748 across a full year. A household on the local median income would put about 18% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.4×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 64.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in Illinois.
- South Elgin village 23,984
- Westmont village 24,201
- Elmwood Park village 23,982
- Kankakee city 24,384
- Rolling Meadows city 23,981
- Zion city 24,466
- Freeport city 23,636
- Belvidere city 24,510
Keep going
More Illinois coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Collinsville city?
- Collinsville city has 24,126 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #95 of 1,462 in Illinois.
- What is the median household income in Collinsville city?
- Median household income in Collinsville city is $65,170 a year, 17% below the national figure of $78,538.
- How much does it cost to rent or buy in Collinsville city?
- Median gross rent is $979 a month and the median home value is $157,700, so rent absorbs about 18% of median household income.
- Is Collinsville city affordable compared with the rest of the US?
- Homes cost about 2.4× the local median income here versus roughly 3.9× nationally, so Collinsville city is more affordable to buy in than the typical US market, and rent takes 18% of median income against the 30% cost-burden line.
- How current is this Collinsville city data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.