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

Utah ZIP Codes

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

State ZIP Code City County Area Codes
UT 84244 Ogden Weber County 801
UT 84301 Bear River City Box Elder County 435
UT 84302 Brigham City Box Elder County 435
UT 84304 Cache Junction Cache County 435
UT 84305 Clarkston Cache County 208, 435, 986
UT 84306 Collinston Box Elder County 435
UT 84307 Corinne Box Elder County 435
UT 84308 Cornish Cache County 208, 435, 986
UT 84309 Deweyville Box Elder County 435
UT 84310 Eden Weber County 385, 435, 801
Page 16 of 35

Geographic Map of Utah

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.