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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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Richardson County ZIP Codes

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

County State ZIP Code City Area Codes
Richardson County NE 68337 Dawson 402, 531, 785
Richardson County NE 68355 Falls City 402, 531, 660, 785
Richardson County NE 68376 Humboldt 402, 531
Richardson County NE 68431 Rulo 402, 531, 660, 785
Richardson County NE 68433 Salem 402, 531, 785
Richardson County NE 68437 Shubert 402, 531, 660
Richardson County NE 68442 Stella 402, 531
Richardson County NE 68457 Verdon 402, 531

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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.