ZIP codes
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Alabama811 ZIP codesAlaska273 ZIP codesAmerican Samoa1 ZIP codesArizona530 ZIP codesArkansas706 ZIP codesCalifornia2,593 ZIP codesColorado645 ZIP codesConnecticut429 ZIP codesDelaware96 ZIP codesDistrict of Columbia277 ZIP codesFlorida1,473 ZIP codesGeorgia952 ZIP codesGuam7 ZIP codesHawaii137 ZIP codesIdaho320 ZIP codesIllinois1,575 ZIP codesIndiana968 ZIP codesIowa1,055 ZIP codesKansas748 ZIP codesKentucky946 ZIP codesLouisiana719 ZIP codesMaine485 ZIP codesMaryland605 ZIP codesMassachusetts685 ZIP codesMichigan1,159 ZIP codesMinnesota992 ZIP codesMississippi531 ZIP codesMissouri1,157 ZIP codesMontana404 ZIP codesNebraska620 ZIP codesNevada254 ZIP codesNew Hampshire281 ZIP codesNew Jersey723 ZIP codesNew Mexico427 ZIP codesNew York2,154 ZIP codesNorth Carolina1,081 ZIP codesNorth Dakota407 ZIP codesNorthern Mariana Islands3 ZIP codesOhio1,416 ZIP codesOklahoma765 ZIP codesOregon481 ZIP codesPennsylvania2,176 ZIP codesPuerto Rico132 ZIP codesRhode Island90 ZIP codesSouth Carolina534 ZIP codesSouth Dakota385 ZIP codesTennessee785 ZIP codesTexas2,600 ZIP codesU.S. Virgin Islands6 ZIP codesUtah347 ZIP codesVermont308 ZIP codesVirginia1,214 ZIP codesWashington716 ZIP codesWest Virginia851 ZIP codesWisconsin896 ZIP codesWyoming195 ZIP codes
ZIP codes vs ZCTAs
ZIP codes are USPS mail routes, not fixed areas. The Census Bureau builds ZIP Code Tabulation Areas (ZCTAs) to approximate them. There are about 41,600 ZIP codes but only about 33,800 ZCTAs. Most ZIPs without a ZCTA are PO-box-only or single-building ZIPs. On ZipCodeBright, boundaries and centers come from ZCTAs where one exists.