St. Clair County, IL housing market
Data through Aug 2026 · Balanced market · leverage 46
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Home Value
$179,207
+1.5% vs. a year ago
Buyer Leverage Score
46
Sep 2026
Months of Supply
3.3 months
Aug 2026
Days on Market
57 days
Sep 2026
Price Cut %
24%
Sep 2026
Sale-to-List Ratio
97.5%
Aug 2026
Mtg Payment as % of Income
22%
Aug 2026
Rental Rate
$1,332/mo
Aug 2026
Overvalued %
4.8%
Aug 2026
Expected Disaster Loss
$183
Dec 2025
What this means
- Valuation. Prices are roughly in line with local incomes (+5% vs. this area's pre-2020 price-to-income norm).
- Prices. Home values are up 1.5% over the past year (U.S.: +1.2%).
- Supply. Listings are 28% below the 2017-19 norm and rising (+16% vs. a year ago): still a tight market.
- Negotiating. Buyer leverage is moderate (46/100; U.S.: 54): homes sell for about 2.5% below their final list price; 24% of listings had a price cut (U.S.: 26%).
- Affordability. A mortgage on the typical home takes 22% of the median household income (U.S.: 35%); it takes about $55k a year to keep the payment at 30% of gross pay. That includes about $1,734 a year for home insurance (U.S.: $1,790).
- Buy vs. rent. Owning and renting a typical home cost about the same per month.
- Disaster risk. FEMA expects about $183 a year in natural-disaster damage per $100k of building value (U.S.: $155), mostly from flooding.
- Outlook. No clear direction: likely −7% to +9% over the next 12 months (66% chance of a rise).
Next 12 months
No clear direction
A rise is somewhat more likely than a fall, but not by enough to call. Likely change: −7.1% to +9.3% (80% range; middle estimate +2.4%), chance of a rise 66%, of a 5%+ drop 14%.
HouseVane's model, refit every month on local market signals and national ones, trained only on data known at the time. How accurate it has been.
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ZIP codes in St. Clair County, IL
| Area | Home value | 1-year change | Buyer leverage |
|---|---|---|---|
| O Fallon, IL 62269 | $313.6K | +2.7% | 26 |
| Belleville, IL 62221 | $253.8K | +2.0% | 12 |
| Belleville, IL 62226 | $184.4K | +1.8% | 28 |
| Belleville, IL 62220 | $153.1K | −0.1% | 36 |
| Fairview Heights, IL 62208 | $196K | +1.5% | 13 |
| Belleville, IL 62223 | $181.6K | +0.8% | 28 |
| Cahokia Heights, IL 62206 | $52.6K | −2.7% | 91 |
| Mascoutah, IL 62258 | $262.8K | +2.1% | 24 |
| Caseyville, IL 62232 | $142.9K | −3.8% | 35 |
| Cahokia Heights, IL 62207 | $41.5K | −0.5% | 99 |
| Lebanon, IL 62254 | $211.5K | −1.7% | 25 |
| Millstadt, IL 62260 | $300.2K | +5.0% | 29 |
| East Saint Louis, IL 62205 | $34.2K | +5.8% | 85 |
| Freeburg, IL 62243 | $267.5K | +3.2% | 24 |
| East Saint Louis, IL 62203 | $41.8K | −1.1% | 45 |
| ZIP 62225 | – | – | – |
| East Saint Louis, IL 62201 | $52.8K | −9.5% | 51 |
| Smithton, IL 62285 | $312.8K | +4.1% | 22 |
| Dupo, IL 62239 | $128.6K | −1.3% | 26 |
| East Saint Louis, IL 62204 | $34.7K | −3.2% | 99 |
| New Athens, IL 62264 | $161.1K | −3.5% | 34 |
| Marissa, IL 62257 | $108K | −2.6% | 31 |
| Columbia, IL 62240 | $81K | −0.8% | 13 |
| Lenzburg, IL 62255 | $118.6K | −1.1% | 69 |
| Lovejoy, IL 62059 | – | – | 13 |
| Marissa, IL 62282 | – | – | 62 |
| Summerfield, IL 62289 | – | – | 47 |