Williamson County housing market

228 homes for sale in Williamson County, Illinois · median asking $241,250

Median asking
$241,250
Median $/sq ft
$127
Median days listed
58
New this week
21

What is on the market, by asking price

Under $750K
220 96%
$750K-$1M
3 1%
$1M-$1.5M
3 1%
$1.5M+
2 1%

Cities in Williamson County

5

ZIP codes in Williamson County

5
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5 covered areas have no matching boundary here and are not shaded. They are all in the table view.

What this does and does not say

  • Coverage is the areas EuKreate tracks, so this is not the whole of Williamson County.
  • Active asking prices only, not sold prices and not an appraisal. Check official sources before acting.
  • Whether a home is under contract is not in the data we receive, so no pending count is shown.
  • An area needs at least 8 active listings before a median is shown, because a median of four is a number rather than a market.
  • Measured September 20, 2026 and recalculated daily.