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

Carroll County ZIP Codes

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

County State ZIP Code City Area Codes
Carroll County NH 03849 Madison 603
Carroll County NH 03850 Melvin Village 603
Carroll County NH 03853 Mirror Lake 603
Carroll County NH 03860 North Conway 603
Carroll County NH 03864 Ossipee 603
Carroll County NH 03872 Sanbornville 207, 603
Carroll County NH 03875 Silver Lake 603
Carroll County NH 03882 Effingham 207, 603
Carroll County NH 03883 South Tamworth 603
Carroll County NH 03886 Tamworth 603
Page 10 of 14

Geographic Map of Carroll 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.