Median Age by Zip Code (ZCTA5) — Portland Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

The Portland metro area exhibits a clear age gradient, with younger median ages concentrated in the urban core—particularly in inner Portland and parts of Hillsboro, where values dip into the low-to-mid 30s—while older populations cluster along the northern periphery near the Columbia River corridor and in the southern exurban fringe, where median ages reach into the mid-50s and above. A notable pocket of very low median age (around 20) appears in the southeastern corner of the metro, likely corresponding to a college campus or student-heavy community. The western suburbs, including Beaverton and Lake Oswego, generally fall in the 38–45 range, reflecting established family-oriented neighborhoods that bridge the younger urban core and the older rural edges.

Data: U.S. Census Bureau, 2023 ACS

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