The Town FilesCollinsville, Illinois
City in Madison County · population 24,366 (2020 Census) · spans 2 counties
- Median home
- $163,600
- Household income
- $67,612
- Jan low / Jul high
- 24° / 89°
- Snow a year
- 11 in
- Tornadoes ≤10 mi since 1950
- 42
- Median age
- 38.5
Collinsville is a city of 24,366 people in Madison County, Illinois. The median home is worth $163,600, close to the typical Illinois town ($156,600). It ranks better for first-time buyers than 92% of Illinois towns, hipper than 91% of Illinois towns, more walkable than 81% of Illinois towns.
How Collinsville ranks
Percentile among Illinois towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Illinois towns.
Homes and cost of living
The median home in Collinsville is worth $163,600, close to the typical Illinois town ($156,600). Homes cost about 2.4 times the median household income of $67,612, which is more affordable than 42% of Illinois towns. Median rent is $1,038 a month. 66.0% of households own their home.
| Housing | Collinsville | Typical Illinois town |
|---|---|---|
| Median home value | $163,600 | $156,600 |
| Median rent | $1,038 | $960 |
| Median household income | $67,612 | $72,500 |
| Home value ÷ income | 2.4× | 2.2× |
| Homeownership | 66.0% | 76.6% |
| Median year built | 1971 | 1967 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in Collinsville
| People | Collinsville | Typical Illinois town |
|---|---|---|
| Median age | 38.5 | 40.4 |
| Age 65 and over | 18.2% | 18.7% |
| Under 18 | 19.7% | — |
| Bachelor's degree or higher | 31.0% | 21.8% |
| Below the poverty line | 12.0% | 9.9% |
| Veterans | 7.3% | — |
| Born outside the U.S. | 3.1% | — |
| Work from home | 12.7% | 8.9% |
| Average commute | 24.2 min | 26.1 min |
| Homes with broadband | 93.2% | 90.4% |
Weather in Collinsville
July highs average 89.0°F and January lows 24.1°F. About 40.8 inches of rain and melted snow fall a year, with 10.8 inches of snow (typical Illinois town: 24.2 in). Expect about 46 days a year at 90°F or hotter and 98 nights at or below freezing.
Tornadoes, storms and disasters
42 tornadoes have passed within 10 miles of Collinsville since 1950, compared with 27 for the typical Illinois town. 19 rated (E)F2 or stronger. The strongest, an F4, struck on April 3, 1981 about 6.2 miles from the town center. Tornadoes within 10 miles have caused 24 deaths and 268 injuries since 1950. The most recent was on May 16, 2025.
Hail of 1 inch or larger has been reported within 10 miles 161 times; the largest was 3.75 inches on March 14, 2024.
Severe weather in Madison County since 1996
Madison County has been included in 16 federal disaster or emergency declarations since 1953, most often for flood, tornado, hurricane.
| Declared | Incident | Declaration |
|---|---|---|
| December 13, 2021 | Tornado | EM-3577: Severe Storms, Straight-Line Winds, And Tornadoes |
| March 26, 2020 | Biological | DR-4489: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3435: Covid-19 |
| September 19, 2019 | Flood | DR-4461: Severe Storms And Flooding |
| June 24, 2008 | Severe Storm | DR-1771: Severe Storms And Flooding |
Jobs and pay in Madison County
Madison County had 105,166 jobs in 2024, paying an average of $57,153 a year. Unemployment was 4.1% in 2023; in Collinsville itself the ACS puts it at 4.7%.
Public schools in Collinsville
10 public schools with 5,259 students, about 13.8 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| Collinsville High School | 9-12 | 1,966 | 15.2 |
| Collinsville Middle School | 7-8 | 940 | 13.4 |
| Dorris Intermediate Sch | 4-6 | 807 | 13.0 |
| John A Renfro Elementary School | PK-4 | 498 | 13.8 |
| Kreitner Elem School | PK-4 | 378 | 12.6 |
| Webster Elementary School | PK-4 | 339 | 12.1 |
| Twin Echo Elem School | K-4 | 182 | 14.0 |
| Jefferson Elem School | K-4 | 79 | 13.2 |
| Summit Elementary School | K-4 | 70 | 10.0 |
| Collinsville Area Career Ctr | 11-12 | — | — |
Towns near Collinsville
- Caseyville, IL3.6 mi · 4,400 people · home $96,800
- Pontoon Beach, IL4.0 mi · 5,876 people · home $145,100
- Maryville, IL4.1 mi · 8,221 people · home $261,800
- Madison, IL5.1 mi · 3,171 people · home $58,900
- Fairview Heights, IL5.7 mi · 16,706 people · home $177,700
- Washington Park, IL5.7 mi · 2,592 people · home $37,500
- Glen Carbon, IL5.7 mi · 13,842 people · home $282,000
- Troy, IL7.0 mi · 10,960 people · home $268,000
Collinsville questions
Is Collinsville, Illinois a good place to retire?
On The Town Files lifestyle rankings, Collinsville scores better for retirees than 31% of Illinois towns and quieter than 23%. 18.2% of residents are 65 or older (median age 38.5).
How much does a house cost in Collinsville?
The median owner-occupied home in Collinsville is valued at $163,600 (Census ACS 2020–2024), against a median household income of $67,612, so homes cost about 2.4 times income. Median rent is $1,038 a month.
What is the weather like in Collinsville?
July highs average 89.0°F and January lows 24.1°F (NOAA 1991–2020 normals). It gets about 40.8 inches of precipitation a year and 10.8 inches of snow.
Does Collinsville get tornadoes?
42 tornadoes have passed within 10 miles of Collinsville since 1950 (NOAA Storm Events); the strongest was a F4 on April 3, 1981. The typical Illinois town has had 27.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)