St. Clair County, MO Housing Market Brief
county · MO · as of August 2026
What is St. Clair County, MO’s Alpha Score?
The Alpha Score is a composite 0–100 index of market strength, a weighted blend of five dimensions. See the methodology.
Where is St. Clair County, MO in its market cycle?
St. Clair County, MO is classified as Mature — holding near a healthy peak. This is a classification of recent (1–12 month) momentum, not a price forecast.
St. Clair County, MO housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $165K | ▼ -46.9% |
| Median Days on Market | 43 days | ▼ -21.8% |
| Months of Supply | 5.4 | ▲ +42.1% |
| Homes for Sale | 33 | ▲ +26.9% |
| Homes Sold | 6 | ▼ -14.3% |
| Median Price / Sq Ft | $143 | ▼ -18% |
How has St. Clair County, MO’s Alpha Score moved?
Markets like St. Clair County, MO
Frequently asked questions
Is St. Clair County, MO a buyer's or seller's market?
As of August 2026, St. Clair County, MO is classified as a Balanced Market, based on its Alpha Score of 59 out of 100. The classification reflects current price, inventory, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in St. Clair County, MO?
The median sale price in St. Clair County, MO is $165K, having fallen 46.9% over the past year.
How affordable is St. Clair County, MO?
St. Clair County, MO scores 81 out of 100 on affordability — relatively affordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving St. Clair County, MO's Alpha Score?
St. Clair County, MO's strongest dimension is Affordability (81/100) and its weakest is Economic Strength (48/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of St. Clair County, MO? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.