Map / IL / Grundy County
County market report · FIPS 17063

Grundy County, IL

Chicago-Naperville-Elgin, IL-IN-WI · Population 50,993 (Census V2020 est.)

Typical value
$322,819
Sep 2026
1M
+0.3%
3M
+0.6%
12M
+3.6%
5Y
+27.8%
10Y
+63.1%
From peak
0.0%
Peak $322,819 · Sep 2026
Rank US / state
1259 / 65
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-Only

No active signal this month.

Inventory, sales & days on market — Phase 2

Supply and demand confirmation is not yet available.

Yearly values (December)
YearZHVI (Dec)YoY change
2025$315,789+3.5%
2024$304,999+5.9%
2023$287,918+6.4%
2022$270,654+5.7%
2021$255,978+8.0%
2020$236,969+4.5%
2019$226,790+4.5%
2018$217,066+4.1%
2017$208,430+4.3%
2016$199,759+5.6%
2015$189,244+6.4%
2014$177,823+3.1%
2013$172,424+8.6%
2012$158,834+2.6%
2011$154,880-6.0%
2010$164,785-2.1%
2009$168,237-8.5%
2008$183,816-6.2%
2007$196,038-0.8%
2006$197,610—