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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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Dakota County ZIP Codes

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

County State ZIP Code City Area Codes
Dakota County MN 55010 Castle Rock 651
Dakota County MN 55024 Farmington 507, 651, 952
Dakota County MN 55031 Hampton 507, 651
Dakota County MN 55033 Hastings 507, 534, 651, 715
Dakota County MN 55044 Lakeville 651, 952
Dakota County MN 55065 Randolph 507, 651
Dakota County MN 55068 Rosemount 651, 952
Dakota County MN 55075 South Saint Paul 651
Dakota County MN 55076 Inver Grove Heights 651
Dakota County MN 55077 Inver Grove Heights 651
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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.