$3,500
4 bd3 ba1,943 sqft
21434 Townsendia Ave

The average Seneca, CA home value is $609,207, down 0.5% over the past year.
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: $609,207
1-year Value Change: -0.5%
(Data through June 30, 2025)
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