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 58013 Cayuga Sargent County 701
ND 58015 Christine Richland County 218, 701
ND 58016 Clifford Traill County 701
ND 58017 Cogswell Sargent County 605, 701
ND 58018 Colfax Richland County 701
ND 58021 Davenport Cass County 701
ND 58027 Enderlin Ransom County 701
ND 58029 Erie Cass County 701
ND 58030 Fairmount Richland County 218, 605, 701
ND 58031 Fingal Barnes County 701
Page 2 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.