What the Pros Know
Market Snapshot
Zip Code 62203 | St. Clair County, IL
6,076
Population
YoY
202246.1
Median Age
YoY
2022$45,221
Median Household Income
YoY
2022$80,000
Median Sale Price
0.1% MoM
150.0% YoY
6/20255
Homes Sold
16.7% MoM
44.4% YoY
6/20251.8
Months Inventory
1.8% MoM
368% YoY
6/202527
Days on Market
8 MoM
12 YoY
6/20259
Listings
18.2% MoM
10.0% YoY
6/202572
Price per Sq Ft
203.2% MoM
1.4% YoY
6/2025
See 62203 on Zillow
1. Population Data from U.S. Census Bureau.
2. Sales Data provided by Redfin, a national real estate brokerage.
MoM = Month over Month. The percentage change from the previous month to the current month.
YoY = Year over Year. The percentage change from the same period the previous year to the current period.