Updated
Real Estate Investing in St. Clair County, IL
St. Clair County, IL real estate market data — demographics, home values, and investor context.
254,777
Population
$70,178
Median Income
$168,800
Median Home Value
68%
Owner-Occupied
St. Clair County, IL Demographics
US Census ACS 5-year estimates. Demographic context drives rent, home value, and absentee-ownership patterns — here's what the numbers say about St. Clair County, IL.
| Population | 254,777 |
|---|---|
| Median age | 39.5 |
| Median household income | $70,178 |
| Median home value | $168,800 |
| Median gross rent | $1,032 |
|---|---|
| Rent burden | 28.8% |
| Owner-occupied units | 68,653 |
| Renter-occupied units | 32,620 |
Why Investors Target St. Clair County, IL
St. Clair County, IL is home to 254,777 residents with a median age of 39.5 years. Households earn a median income of $70,178, against a median home value of $168,800 and a median gross rent of $1,032. Roughly 68% of occupied homes are owner-occupied, with the remainder rented — a key signal for absentee-owner and rental investors. Renters here spend a median of 28.8% of household income on gross rent.
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