Jefferson County, IL Housing Market
The median sale price of a home in Jefferson County was $168K last month, up 27.9% since last year. The median sale price per square foot in Jefferson County is $109, up 29.0% since last year.
Jefferson County Housing Market Trends
In September 2025, Jefferson County home prices were up 27.9% compared to last year, selling for a median price of $168K. On average, homes in Jefferson County sell after 54 days on the market compared to 65 days last year. There were 20 homes sold in September this year, down from 32 last year.

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View houses in Jefferson County that sold recently
Recently sold homes
- $105,000 Last Sold Price2 beds1 bath1,025 sq ft1006 S 26th St, Mt Vernon, IL 62864List Price$110,000Sale to List5% under listDays on Market135 days1006 S 26th St, Mt Vernon, IL 62864
- $40,000 Last Sold Price—beds—baths—sq ftLot 1 Hanson Dr, Mt Vernon, IL 62864List Price$85,000Sale to List53% under listDays on Market3256 daysLot 1 Hanson Dr, Mt Vernon, IL 62864
- $205,000 Last List Price0 beds—baths—sq ft0 E Gun Creek Rd, Spring Garden Township, IL 62846List Price—Sale to List—Days on Market167 days0 E Gun Creek Rd, Spring Garden Township, IL 62846
- $299,000 Last Sold Price4 beds2.5 baths2,576 sq ft4919 Richview Rd, Mt Vernon, IL 62864List Price$299,000Sale to List0% over listDays on Market184 days4919 Richview Rd, Mt Vernon, IL 62864
- $24,000 Last Sold Price2 beds1 bath814 sq ft19010 E Highway 142, Opdyke, IL 62872List Price$25,000Sale to List4% under listDays on Market15 days19010 E Highway 142, Opdyke, IL 62872
- $237,500 Last Sold Price2 beds2 baths1,620 sq ft8807 N Illinois Highway 148 Hwy, Mount Vernon, IL 62864List Price$242,000Sale to List2% under listDays on Market51 days8807 N Illinois Highway 148 Hwy, Mount Vernon, IL 62864
- $300,000 Last Sold Price3 beds1 bath1,272 sq ft22677 Post Oak Rd, Walnut Hill, IL 62893List Price$329,900Sale to List9% under listDays on Market74 days22677 Post Oak Rd, Walnut Hill, IL 62893
- $30,000 Last Sold Price—beds—baths—sq ft915 Cleveland St, Mt Vernon, IL 62864List Price$50,000Sale to List40% under listDays on Market311 days915 Cleveland St, Mt Vernon, IL 62864
See all recently sold homes in Jefferson County.
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Schools in Jefferson County
- Elementary
- Middle
- High
GreatSchools Rating
8/10 Spring Garden Middle School Public • 5-8 | 86 Students | N/A |
7/10 Summersville Grade School Public • PreK-8 | 275 Students | N/A |
7/10 Spring Garden Elementary School Public • K-4 | 138 Students | N/A |
6/10 Bethel Grade School Public • PreK-8 | 160 Students | 2 reviews |
5/10 Waltonville Grade School Public • PreK-8 | 217 Students | N/A |
Climate's impact on Jefferson County housing
Learn about natural hazards and environmental risks, such as floods, fires, wind, and heat that could impact homes in Jefferson County.
Flood Factor - Minor
Flood Factor

Fire Factor - Moderate
Fire Factor

Wind Factor - Minor
Wind Factor

Wind likelihood over time
Heat Factor - Moderate
Heat Factor

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