$1,969,000
5 bd3 ba2,677 sqft
34456 Valley Oaks Loop

The average Union City, CA home value is $1,260,009, down 5.8% over the past year, and homes go to pending in around 19 days. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $1,260,009
1-Year Value Change: -5.8%
(Data through May 31, 2026)
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