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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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Obion County ZIP Codes

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

County State ZIP Code City Area Codes
Obion County TN 38232 Hornbeak 731
Obion County TN 38240 Obion 731
Obion County TN 38253 Rives 731
Obion County TN 38254 Samburg 731
Obion County TN 38257 South Fulton 270, 364, 731
Obion County TN 38260 Troy 731
Obion County TN 38261 Union City 270, 364, 731
Obion County TN 38271 Woodland Mills 731
Obion County TN 38281 Union City 731

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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.