Active Listings
245
⇩ 2.4% vs 251 last year
Data as of February 2026. Source: Realtor.com.
The Williamson County, IL real estate market currently shows 245 active listings, with 74 pending sales. Homes are averaging 92 days on the market before going under contract.
Inventory has tightened compared to last year, with 6 fewer active listings — creating more competition among buyers.
Homes are taking longer to sell, averaging 92 days on market compared to 71 days last year.
The median listing price has fallen 23.9% year-over-year, from $225,000 to $171,175.
Whether you are buying or selling in Williamson County, IL, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 67,880 · Density: 112.3/mi² · Median household income: $60,857
Typical home value: $144,658 · Homeownership: 70.8%
Cambria: 62915
Carbondale: 62902
Carterville: 62918
Colp: 62921
Creal Springs: 62922
Energy: 62933
Freeman Spur: 62841
Herrin: 62948
Hurst: 62949
Johnston City: 62951
Marion: 62959
Pittsburg: 62974
Based on listing price changes before sale/pending as a proxy for sale-to-list dynamics. Source: Realtor.com.