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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.

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Rock County ZIP Codes

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

County State ZIP Code City Area Codes
Rock County MN 56116 Beaver Creek 507, 605
Rock County MN 56134 Hardwick 507
Rock County MN 56138 Hills 507, 605, 712
Rock County MN 56146 Kanaranzi 507
Rock County MN 56147 Kenneth 507
Rock County MN 56156 Luverne 507
Rock County MN 56158 Magnolia 507
Rock County MN 56173 Steen 507, 712
Rock County NE 68714 Bassett 308, 402, 531
Rock County NE 68759 Newport 402, 531, 605
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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.