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

Golden Valley County ZIP Codes

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

County State ZIP Code City Area Codes
Golden Valley County MT 59046 Lavina 406
Golden Valley County MT 59074 Ryegate 406
Golden Valley County ND 58621 Beach 306, 406, 474, 701
Golden Valley County ND 58632 Golva 306, 406, 474, 701
Golden Valley County ND 58654 Sentinel Butte 306, 406, 474, 701

Geographic Map of Golden Valley 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.