Illinois Madison County St. Clair County
Collinsville
A city in Madison County, Illinois — population 24,217 as of 2020.
This Afternoon
75°F
Chance Showers And Thunderstorms57% precip
Tonight
68°F
Patchy Fog then Widespread Drizzle64% precip
Sunday
81°F
Patchy Drizzle then Mostly Cloudy15% precip
Sunday Night
66°F
Partly Cloudy7% precip
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Collinsville by the numbers
Population
24,217Population figure, 2020
Households & income
- Area
- 15.08 sq mi (39.05 km²), 0.19 sq mi water
- Median age
- 38.5
- Households
- 11,061
- Persons per household
- 2.2
- Median household income
- $67,612
- Median house value
- $163,600
Municipal office
- Office
- DIREC./TREAS.
- Address
- 125 S CENTER ST, COLLINSVILLE, IL 62234