County market report · FIPS 17131
Mercer County, IL
Davenport-Moline-Rock Island, IA-IL · Population 15,225 (Census V2020 est.)
Typical value
$175,685
Sep 2026
1M
+0.5%
3M
+0.5%
12M
+7.8%
5Y
+7.7%
10Y
+21.8%
From peak
-0.3%
Peak $176,172 · Apr 2026
Rank US / state
293 / 22
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 | $168,176 | +6.3% |
| 2024 | $158,156 | -6.5% |
| 2023 | $169,160 | +0.4% |
| 2022 | $168,529 | +1.3% |
| 2021 | $166,308 | +3.9% |
| 2020 | $160,048 | +5.2% |
| 2019 | $152,146 | +7.0% |
| 2018 | $142,129 | +1.1% |
| 2017 | $140,651 | -1.2% |
| 2016 | $142,420 | +1.2% |
| 2015 | $140,752 | +0.7% |
| 2014 | $139,733 | +0.4% |
| 2013 | $139,122 | +6.3% |
| 2012 | $130,838 | — |