St. Clair County, IL Housing Market

St. Clair County, IL's median home value is $181K, up 7.0% over the past year. Homes here sell in a median 46 days. Its PropertyIQ Score of 63 sits well above the state average of 50, marking a market positioned to outperform its state over the next three years.

Understanding the St. Clair County, IL housing market at the county level reveals patterns invisible in metro-wide data. PropertyIQ's demand signal scoring — validated across more than two decades of housing data (2001–2023) — now extends to county-level granularity, giving investors and agents a competitive edge in IL.

Midwestern counties often offer entry prices well below national medians. PropertyIQ scores identify which counties show demand signals — fast sales, rising price momentum, and few price cuts — that predict near-term appreciation. Within the Midwest, St. Clair County, IL's PropertyIQ Score of 63 ranks among the Midwest's stronger demand signals.

The PropertyIQ Score for St. Clair County, IL blends four proven demand indicators. When home values are gaining momentum, homes sell quickly, and few sellers cut prices, the score rises — signaling a market positioned to outperform its state. Historically, top-scored markets delivered significantly higher 3-year excess returns than bottom-scored markets.

Use PropertyIQ's analytics tools to evaluate St. Clair County, IL alongside other investment opportunities. The interactive map, county rankings, and AI-generated reports provide comprehensive market intelligence at the county level.