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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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Mills County ZIP Codes

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

County State ZIP Code City Area Codes
Roger Mills County OK 73642 Durham 580, 806
Roger Mills County OK 73650 Hammon 580
Roger Mills County OK 73660 Reydon 580, 806
Roger Mills County OK 73666 Sweetwater 580, 806
Mills County TX 76844 Goldthwaite 254, 325
Mills County TX 76864 Mullin 325
Mills County TX 76870 Priddy 325
Mills County TX 76880 Star 254
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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.