Grundy County, IL housing market
Data through Aug 2026 · Seller's market · leverage 22
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Home Value
$323,639
+3.6% vs. a year ago
Buyer Leverage Score
22
Sep 2026
Months of Supply
3.0 months
Aug 2026
Days on Market
40 days
Sep 2026
Price Cut %
21%
Sep 2026
Sale-to-List Ratio
98.8%
Aug 2026
Mtg Payment as % of Income
30%
Aug 2026
Rental Rate
$1,393/mo
Aug 2026
Overvalued %
28%
Aug 2026
Expected Disaster Loss
$157
Dec 2025
What this means
- Valuation. Prices are 28% above what local incomes have historically supported (this area's pre-2020 price-to-income ratio).
- Prices. Home values are up 3.6% over the past year (U.S.: +1.2%).
- Supply. Listings are 47% below the 2017-19 norm: still a tight market.
- Negotiating. Buyer leverage is low (22/100; U.S.: 54): homes sell for about 1.2% below their final list price; 21% of listings had a price cut (U.S.: 26%).
- Affordability. A mortgage on the typical home takes 30% of the median household income (U.S.: 35%); it takes about $93k a year to keep the payment at 30% of gross pay. That includes about $1,519 a year for home insurance (U.S.: $1,790).
- Buy vs. rent. Buying costs about $936/mo more than renting a typical home (mortgage payment vs. typical rent).
- Disaster risk. FEMA expects about $157 a year in natural-disaster damage per $100k of building value (U.S.: $155), mostly from flooding.
- Outlook. Leaning up: likely −5% to +11% over the next 12 months (74% chance of a rise).
Next 12 months
Leaning up
Prices are more likely to rise than fall over the next year. Likely change: −5.5% to +10.9% (80% range; middle estimate +4.0%), chance of a rise 74%, of a 5%+ drop 10%.
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 Grundy County, IL
| Area | Home value | 1-year change | Buyer leverage |
|---|---|---|---|
| Morris, IL 60450 | $315.9K | +3.6% | 17 |
| Coal City, IL 60416 | $295.2K | +4.0% | 12 |
| Reddick, IL 60424 | $237.4K | −1.6% | 17 |
| Mazon, IL 60444 | $276.1K | +4.0% | 25 |
| Braceville, IL 60407 | $224.4K | +4.4% | 1 |
| Verona, IL 60479 | $364.5K | +6.9% | 1 |
| South Wilmington, IL 60474 | $192.2K | −0.9% | 12 |
| Kinsman, IL 60437 | – | – | 8 |