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

NOTE: Gray indicates insufficient data or a suppressed estimate.

Newer housing construction is concentrated in the central and western interior of Maine, where several zip codes in the greater Augusta and central highlands areas display rates of 8–12% or higher, with scattered pockets reaching above 20%. Coastal southern Maine and the far northern Aroostook County regions generally exhibit lower shares of post-2010 construction, with many zip codes falling below 4%, suggesting aging housing stock and limited new development. The contrast is particularly stark along the eastern coastline and Downeast region, where deep purple shading indicates near-zero new construction in multiple adjacent zip codes, while isolated green pockets in the midcoast and western mountains reflect localized development activity.

Data: U.S. Census Bureau, 2023 ACS

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