NOTE: Gray indicates insufficient data or a suppressed estimate.
Larger household sizes (3.0+) concentrate in the agricultural regions of southeastern Oregon near the Harney and Malheur county areas, as well as in suburban zip codes ringing the Portland metro area, likely reflecting family-oriented communities. In contrast, urban cores—particularly Portland, Eugene, and Bend—along with several central Oregon zip codes display notably lower average household sizes (1.5–2.0), consistent with higher concentrations of single-person households, college students, and older residents. The coastal zip codes show moderate values generally ranging from 2.0 to 2.5, with scattered pockets of lower averages in retirement-oriented communities.
Data: U.S. Census Bureau, 2023 ACS
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