Housing % of Units Built Since 2010, by Zip Code (ZCTA5) — California

NOTE: Gray indicates insufficient data or a suppressed estimate.

Newer housing construction concentrates most heavily in the exurban and suburban fringes of major metro areas, with notable clusters of 20%+ growth visible in portions of the Inland Empire, the Sacramento region's eastern periphery, and scattered Central Valley zip codes where greenfield development has been feasible. Coastal urban cores from the Bay Area through Los Angeles generally display lower shares of post-2010 construction, reflecting land constraints and regulatory barriers, though isolated high-percentage zip codes within these metros likely correspond to targeted infill or large mixed-use developments. The rural northern and eastern mountain regions show a patchwork of very low construction activity interspersed with moderate growth in recreational or resource-adjacent communities.

Data: U.S. Census Bureau, 2023 ACS

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