There are 5 zip codes in Johnson County, Nebraska. The most populated is 68450, located in Tecumseh. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
684503,173Tecumseh
684431,086Sterling
68329681Cook
68348263Elk Creek
6833283Crab Orchard

Zip Codes in Johnson County, Nebraska by Population (2024)