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
State directory

North Dakota ZIP Codes

Complete postal directory, details, and geographic map for the State of North Dakota.

State ZIP Code City County Area Codes
ND 58266 Niagara Grand Forks County 701
ND 58267 Northwood Grand Forks County 701
ND 58269 Osnabrock Cavalier County 701
ND 58270 Park River Walsh County 701
ND 58271 Pembina Pembina County 218, 701
ND 58272 Petersburg Nelson County 701
ND 58273 Pisek Walsh County 701
ND 58274 Portland Traill County 701
ND 58275 Reynolds Grand Forks County 218, 701
ND 58276 Saint Thomas Pembina County 701
Page 13 of 41

Geographic Map of North Dakota

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.