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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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Cass County ZIP Codes

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

County State ZIP Code City Area Codes
Cass County NE 68407 Murdock 402, 531
Cass County NE 68409 Murray 402, 531
Cass County NE 68413 Nehawka 402, 531
Cass County NE 68455 Union 402, 531, 712
Cass County NE 68463 Weeping Water 402, 531
Cass County TX 75551 Atlanta 318, 430, 903
Cass County TX 75555 Bivins 318, 430, 903
Cass County TX 75556 Bloomburg 430, 870, 903
Cass County TX 75560 Douglassville 430, 903
Cass County TX 75562 Kildare 430, 903
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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.