U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
County directory

Monroe County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Monroe County.

County State ZIP Code City Area Codes
Monroe County FL 33070 Tavernier 305, 786
Monroe County GA 31004 Bolingbroke 478
Monroe County GA 31016 Culloden 470, 478, 678, 706, 762, 770, 943
Monroe County GA 31029 Forsyth 470, 478, 678, 706, 762, 770, 943
Monroe County GA 31046 Juliette 478, 706, 762
Monroe County GA 31086 Smarr 478
Monroe County IA 50150 Lovilia 641
Monroe County IA 52531 Albia 641
Monroe County IA 52569 Melrose 641
Monroe County IL 62236 Columbia 314, 557, 618
Page 4 of 24

Geographic Map of Monroe County

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.