Union County, IL Housing Market Brief
county · IL · as of July 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.
Where is Union County, IL in its market cycle?
Union County, IL is classified as Mature — holding near a healthy peak. This is a classification of recent (1–12 month) momentum, not a price forecast.
Union County, IL housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $204K | ▲ +152.8% |
| Median Days on Market | 90 days | ▲ +3.5% |
| Months of Supply | 5.4 | ▼ -18.2% |
| Homes for Sale | 54 | ▲ +1.9% |
| Homes Sold | 10 | ▲ +25% |
| Median Price / Sq Ft | $104 | ▲ +19.6% |
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?
As of July 2026, Union County, IL is classified as a Balanced Market, based on its Alpha Score of 43 out of 100. The classification reflects current price, inventory, 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 $204K, having risen 152.8% over the past year.
How affordable is Union County, IL?
Union County, IL scores 67 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 Affordability (67/100) and its weakest is Rental Yield (23/100). 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.