Williamson County, IL Real Estate & Homes For Sale
426 homes
- NEW - 5 HRS AGO23 ACRESLegacy Land & Homes of Illinoi
- NEW - 8 HRS AGOMaggie Cook, HOUSE 2 HOME REALTY
- NEW - 8 HRS AGOJerry Beasley, HOUSE 2 HOME REALTY
- NEW - 15 HRS AGO3D VIEW1.01 ACRESMonica J McGinley, HOUSE 2 HOME REALTY
- NEW - 1 DAY AGO0.57 ACRESMonica J McGinley, HOUSE 2 HOME REALTY
- NEW - 1 DAY AGO0.5 ACRESMonica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Monica J McGinley, HOUSE 2 HOME REALTY
- Homefinders Realty
- Landmark Realty Group
- Kristen Anastasi, HOUSE 2 HOME REALTY
- Shawnna L Donovan, Southern Illinois Realty Experts - Herrin
- Sarah J Francis, HOUSE 2 HOME REALTY
- Kaitlynn Morgan, HOUSE 2 HOME REALTY
- Curtis Rogers, Hunt and Farm Realty, LLC, My State MLS
- Josh Jeralds, HOUSE 2 HOME REALTY
- Melissa A Plant, COLDWELL BANKER J D THOMPSON
- Daesin Bothwell, REALTY 618 LLC
- Brittany R Grove, REALTY 618 LLC
- Homefinders Realty
- Nikki Rishel, Southern Illinois Realty Experts - Carbondale
- Vicki L Williams, Indigo Realty LLC
- Melissa A Plant, COLDWELL BANKER J D THOMPSON
- Monica J McGinley, HOUSE 2 HOME REALTY
- Trent Johnston, RIVER 2 RIVER REALTY, INC.
Williamson County, IL Real Estate Trends
Learn about the Williamson County, IL housing market through trends and averages.Affordability of Living in Williamson County, IL
| Month | Median home value |
|---|---|
| October 2025 | $158k |
| November 2025 | $158k |
| December 2025 | $158k |
| January 2026 | $159k |
| February 2026 | $160k |
| March 2026 | $161k |
| April 2026 | $161k |
| May 2026 | $159k |
| June 2026 | $159k |
| July 2026 | $158k |
| August 2026 | $158k |
| September 2026 | $158k |
Trends and affordability stats are provided by third party data sources.
Average Home Value in Williamson County, IL, by Home Size
| Home Size | Home Value* |
|---|---|
| 2 bedrooms (See homes) | $97,572 |
| 3 bedrooms (See homes) | $194,771 |
| 4 bedrooms (See homes) | $280,572 |
Browse Williamson County, IL homes by type

Based on information submitted to the MLS GRID as of 2026. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Click here for more information

Based on information submitted to the MLS GRID as of 2026-11-03 12:27:39 PST. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information