Winnebago County, IL Housing Market Brief
county · IL · score computed October 2026
What is Winnebago 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.
Population band 5 of 5 (population 103,008–9,808,667) · comparable within its band
Where is Winnebago County, IL in its market cycle?
Winnebago 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.
What’s the forecast for Winnebago County, IL?
County-level forecasts are paused (since Oct 18, 2026). The new public-data model we built to replace them didn't pass our accuracy test, and we won't publish forecasts again until a model does.
Winnebago County, IL housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $219K | ▲ +9.7% | Redfin |
| Median Days on Market | 11 days | ▲ +22.2% | Redfin |
| Months of Supply | 1.4 | 0% | Redfin |
| Homes for Sale | 469 | ▲ +10.9% | Redfin |
| Homes Sold | 336 | ▲ +8% | Redfin |
| Median Price / Sq Ft | $135 | ▲ +9.9% | Redfin |
How has Winnebago County, IL’s Alpha Score moved?
Markets like Winnebago County, IL
- Stephens County, OK, OKcounty54
- Lauderdale County, MS, MScounty52
- Tazewell County, VA, VAcounty49
- Peoria County, IL, ILcounty51
- LaSalle County, IL, ILcounty52
- Crawford County, OH, OHcounty54
- Upshur County, TX, TXcounty50
- Fulton County, NY, NYcounty57
- Chautauqua County, NY, NYcounty54
- Jim Wells County, TX, TXcounty55
Frequently asked questions
Is Winnebago County, IL a buyer's or seller's market?
In the scores computed October 2026, Winnebago County, IL is classified as a Balanced Market, based on its Alpha Score of 52 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Winnebago County, IL?
The median sale price in Winnebago County, IL is $219K, having risen 9.7% over the past year, according to Redfin.
How affordable is Winnebago County, IL?
Winnebago County, IL scores 70 out of 100 on affordability — relatively affordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Winnebago County, IL's Alpha Score?
Winnebago County, IL's strongest dimension is Price Momentum (83/100) and its weakest is Inventory Health (11/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Winnebago County, IL? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.