Williamson County, IL housing market
Data through Aug 2026 · Balanced market · leverage 51
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Home Value
$157,901
0.0% vs. a year ago
Buyer Leverage Score
51
Sep 2026
Months of Supply
4.2 months
Aug 2026
Days on Market
61 days
Sep 2026
Price Cut %
21%
Sep 2026
Sale-to-List Ratio
96.1%
Aug 2026
Mtg Payment as % of Income
22%
Aug 2026
Rental Rate
$1,000/mo
Aug 2026
Overvalued %
-6.3%
Aug 2026
Expected Disaster Loss
$199
Dec 2025
What this means
- Valuation. Prices are 6% below this area's pre-2020 price-to-income norm, cheaper relative to incomes than before the pandemic.
- Prices. Home values are flat over the past year (U.S.: +1.2%).
- Supply. Listings are 48% below the 2017-19 norm and rising (+22% vs. a year ago): still a tight market.
- Negotiating. Buyer leverage is moderate (51/100; U.S.: 54): homes sell for about 3.9% below their final list price; 21% 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 $47k a year to keep the payment at 30% of gross pay. That includes about $1,696 a year for home insurance (U.S.: $1,790).
- Buy vs. rent. Buying costs about $180/mo more than renting a typical home (mortgage payment vs. typical rent).
- Disaster risk. FEMA expects about $199 a year in natural-disaster damage per $100k of building value (U.S.: $155).
- Outlook. No clear direction: likely −8% to +9% over the next 12 months (63% 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: −7.6% to +8.8% (80% range; middle estimate +1.9%), chance of a rise 63%, of a 5%+ drop 16%.
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 Williamson County, IL
| Area | Home value | 1-year change | Buyer leverage |
|---|---|---|---|
| Marion, IL 62959 | $183.2K | +2.6% | 37 |
| Herrin, IL 62948 | $115K | −3.5% | 46 |
| Carterville, IL 62918 | $200.1K | +1.8% | 81 |
| Johnston City, IL 62951 | $105.7K | +0.2% | 35 |
| Carbondale, IL 62902 | $202K | +6.6% | 61 |
| Creal Springs, IL 62922 | $202.4K | −3.7% | 64 |
| Pittsburg, IL 62974 | $151.8K | −5.5% | 35 |
| Energy, IL 62933 | $165.8K | +0.8% | 10 |
| Hurst, IL 62949 | – | – | 90 |
| Cambria, IL 62915 | – | – | 65 |
| ZIP 62921 | – | – | 100 |
| Freeman Spur, IL 62841 | – | – | 34 |