Union County, IL Housing Market Brief
county · IL · score computed October 2026
What is Union 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 2 of 5 (population 9,816–20,389) · comparable within its band
Where is Union County, IL in its market cycle?
Union 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 Union 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.
Union County, IL housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $152K | ▲ +87.2% | Redfin |
| Median Days on Market | 85 days | ▲ +28.8% | Redfin |
| Months of Supply | 3.7 | ▼ -43.1% | Redfin |
| Homes for Sale | 50 | ▼ -23.1% | Redfin |
| Homes Sold | 13 | ▲ +30% | Redfin |
| Median Price / Sq Ft | $108 | ▲ +46.5% | Redfin |
How has Union County, IL’s Alpha Score moved?
Markets like Union County, IL
Frequently asked questions
Is Union County, IL a buyer's or seller's market?
In the scores computed October 2026, Union County, IL is classified as a Balanced Market, based on its Alpha Score of 56 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Union County, IL?
The median sale price in Union County, IL is $152K, having risen 87.2% over the past year, according to Redfin.
How affordable is Union County, IL?
Union County, IL scores 77 out of 100 on affordability — relatively affordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Union County, IL's Alpha Score?
Union County, IL's strongest dimension is Price Momentum (95/100) and its weakest is Economic Strength (19/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Union County, IL? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.