Housing % of Units Built Since 2010, by Zip Code (ZCTA5) — St. Louis Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Newer housing construction concentrates heavily along the western and northwestern periphery of the metro, particularly around St. Peters and the outer St. Charles County zip codes, where several areas exceed 20% of units built since 2010. In stark contrast, the urban core surrounding downtown St. Louis and the inner northern suburbs near Florissant show consistently low rates of new construction, often below 4%, reflecting aging housing stock and limited recent development. A secondary cluster of moderate-to-high new construction activity appears in select southern and southeastern fringe zip codes, suggesting outward suburban growth pressure on multiple fronts.

Data: U.S. Census Bureau, 2023 ACS

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