Williamson County
County in Illinois · Updated Jan 2026
Median Home Value
$146,405
↑ +1.4%
Year-over-year
Median Rent
$970/mo
↑ +6.5%
Year-over-year
Rental Yield
8%
Excellent for investors
5-Year Appreciation
+16.9%
Price-to-Rent Ratio
12.6
Favors buying