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The average Keystone, IA home value is $315,118, up 13.2% over the past year. (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: $315,118
1-Year Value Change: +13.2%
(Data through September 30, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Keystone, IA is $315,118 as of September 2026. This represents a 1.3% increase compared to last month and a 13.2% increase year-over-year.
Home values in Keystone, IA have increased by 1.3% month-over-month and 13.2% year-over-year.
The median home value in Keystone, IA ($315,118) compares to: Benton County ($282,938), Iowa ($236,623), and the U.S. national median ($366,157).