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

Montana ZIP Codes

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

State ZIP Code City County Area Codes
MT 59074 Ryegate Golden Valley County 406
MT 59075 Saint Xavier Big Horn County 406
MT 59076 Sanders Treasure County 406
MT 59077 Sand Springs Garfield County 406
MT 59078 Shawmut Wheatland County 406
MT 59079 Shepherd Yellowstone County 406
MT 59081 Silver Gate Park County 307, 406
MT 59082 Springdale Park County 406
MT 59083 Sumatra Rosebud County 406
MT 59084 Teigen Petroleum County 406
Page 7 of 41

Geographic Map of Montana

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.