County market report · FIPS 17163
Saint Clair County, IL
St. Louis, MO-IL · Population 258,046 (Census V2020 est.)
Typical value
$177,682
Sep 2026
1M
+0.1%
3M
-0.0%
12M
+1.2%
5Y
+18.9%
10Y
+51.9%
From peak
-0.8%
Peak $179,155 · Mar 2026
Rank US / state
2089 / 85
by 12M change
Zillow Home Value Index
Source: Zillow Home Value Index (ZHVI), all homes, smoothed & seasonally adjusted · data through Sep 2026.
Inflection signal
Price-OnlyNo active signal this month.
Inventory, sales & days on market — Phase 2
Supply and demand confirmation is not yet available.
Yearly values (December)
| Year | ZHVI (Dec) | YoY change |
|---|---|---|
| 2025 | $177,942 | +4.7% |
| 2024 | $170,031 | +2.0% |
| 2023 | $166,662 | +4.6% |
| 2022 | $159,262 | +4.5% |
| 2021 | $152,371 | +9.9% |
| 2020 | $138,628 | +8.6% |
| 2019 | $127,633 | +1.4% |
| 2018 | $125,842 | +4.2% |
| 2017 | $120,803 | +3.8% |
| 2016 | $116,431 | +1.9% |
| 2015 | $114,313 | -0.4% |
| 2014 | $114,780 | +3.2% |
| 2013 | $111,189 | -0.4% |
| 2012 | $111,596 | -4.6% |
| 2011 | $116,963 | -8.7% |
| 2010 | $128,124 | -3.0% |
| 2009 | $132,073 | -2.1% |
| 2008 | $134,863 | -7.8% |
| 2007 | $146,332 | -0.0% |
| 2006 | $146,371 | +6.1% |
| 2005 | $138,020 | +6.1% |
| 2004 | $130,035 | +7.2% |
| 2003 | $121,335 | — |