Grundy County, IL Housing Market Brief
county · IL · as of May 2026
What is Grundy County, IL’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 Grundy County, IL in its market cycle?
Grundy County, IL is classified as Growing — strengthening, with scores rising over recent months. This is a classification of recent (1–12 month) momentum, not a price forecast.
Grundy County, IL housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $323K | ▼ -7% |
| Median Days on Market | 50 days | ▲ +25% |
| Months of Supply | 2.4 | ▼ -14.3% |
| Homes for Sale | 157 | ▲ +22.7% |
| Homes Sold | 66 | ▲ +46.7% |
| Median Price / Sq Ft | $193 | ▲ +9% |
| Sale-to-List Ratio | 99.2% | ▼ -2.5% |
How has Grundy County, IL’s Alpha Score moved?
Markets like Grundy County, IL
Frequently asked questions
Is Grundy County, IL a buyer's or seller's market?
As of May 2026, Grundy County, IL is classified as a Balanced Market, based on its Alpha Score of 51 out of 100. The classification reflects current price, inventory, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Grundy County, IL?
The median sale price in Grundy County, IL is $323K, having fallen 7% over the past year.
How affordable is Grundy County, IL?
Grundy County, IL scores 52 out of 100 on affordability — moderately affordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Grundy County, IL's Alpha Score?
Grundy County, IL's strongest dimension is Price Momentum (67/100) and its weakest is Rental Yield (28/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Grundy County, IL? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.