Home › Counties › Jefferson County, IL
The median home value in Jefferson County, IL is $142,543 as of 2026-08-31, up 8.03% from a year earlier.
Median Home Value
$142,543
Year-over-Year
+8.03%
National Rank
#2670 of 3071
Jefferson County ranks 65th out of 102 counties in IL by median home price, and is -39.4% below the U.S. national median of $235,072. Within IL, the typical county has a median home value of $158,585, making Jefferson County -10.1% below the IL state median.
The typical home value decreased by 1.3%, from $144,471 in May 2026 to $142,543 in Aug 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $144,471 | +8.1% |
| Jun 2026 | $140,777 | +8.1% |
| Jul 2026 | $148,135 | +8.1% |
| Aug 2026 | $142,543 | +8.0% |
Households here earn a median of $63,118 a year against a typical home value of $142,543 — a price-to-income ratio of 2.3×, comfortably below the 3× income level generally considered manageable. That is less affordable than roughly 8% of U.S. counties. (How this is calculated.)
Reporting agencies in Jefferson County recorded a violent crime rate of 247 per 100,000 residents in 2024 — around the middle of the national range. Property crime runs at 1,089 per 100,000.
Based on 1 reporting city covering 14,146 residents (FBI UCR data — what this covers).
The median home value in Jefferson County is $142,543. That's up 8.03% from a year earlier. That is about 39.4% below the U.S. national county median of $235,072, and makes Jefferson County the 65th most expensive of 102 counties in Illinois.
Median household income here is $63,118, so a typical home costs about 2.3× annual household earnings — relatively affordable compared with other U.S. counties.
Reporting police departments in Jefferson County recorded 247 violent crimes per 100,000 residents. That figure covers 14,146 residents across 1 reporting city, so it reflects the county's incorporated areas rather than every community within its borders.
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