About
ZIPSFIELD is an independent field guide to US postal places. Search a code, explore a state, or compare two places—without creating an account.
Maintained by ZIPSFIELD website maintenance team. ZIPSFIELD is an independent postal and geographic reference, not an official USPS service.
How we maintain this reference
Postal names and administrative boundaries are not interchangeable. We match statistics only to identified geographies, show their reference year and distinguish estimates from counts. A same-number ZCTA is a Census statistical area, not a live ZIP population. Missing data remain unavailable, never zero.
Place descriptions are checked against public reference material before publication. Photo credits and applicable licenses remain attached. Last checked and actually changed are different events: a successful check does not make old statistics current. Reports of errors enter a private review queue; corrections are not published automatically.
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