County market report · FIPS 47173
Union County, TN
Knoxville, TN · Population 20,187 (Census V2020 est.)
Typical value
$291,876
Sep 2026
1M
-0.0%
3M
+0.4%
12M
+2.4%
5Y
+36.4%
10Y
+129.6%
From peak
-0.0%
Peak $291,936 · Aug 2026
Rank US / state
1708 / 56
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-OnlyE · Potential Peak
r3+0.40%p3+1.40%Acceleration-1.00ppMonths persisting1Evidence (Price-Only)55/100
Inventory, sales & days on market — Phase 2
Supply and demand confirmation is not yet available.
Yearly values (December)
| Year | ZHVI (Dec) | YoY change |
|---|---|---|
| 2025 | $284,756 | +2.3% |
| 2024 | $278,362 | +3.6% |
| 2023 | $268,772 | +10.2% |
| 2022 | $243,974 | +10.2% |
| 2021 | $221,439 | +23.6% |
| 2020 | $179,137 | +7.8% |
| 2019 | $166,174 | +13.1% |
| 2018 | $146,914 | +5.2% |
| 2017 | $139,628 | +5.6% |
| 2016 | $132,200 | +8.4% |
| 2015 | $121,944 | +8.4% |
| 2014 | $112,466 | +2.3% |
| 2013 | $109,972 | -0.0% |
| 2012 | $109,983 | +0.8% |
| 2011 | $109,153 | -1.8% |
| 2010 | $111,156 | +0.1% |
| 2009 | $110,998 | -3.2% |
| 2008 | $114,658 | -0.4% |
| 2007 | $115,113 | +4.0% |
| 2006 | $110,664 | +7.7% |
| 2005 | $102,706 | +8.8% |
| 2004 | $94,367 | +6.2% |
| 2003 | $88,854 | +3.9% |
| 2002 | $85,552 | +4.7% |
| 2001 | $81,690 | +2.8% |
| 2000 | $79,478 | — |