There are 15 zip codes in Cass County, Nebraska. The most populated is 68048, located in Plattsmouth. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
6804813,543Plattsmouth
680372,653Louisville
683472,126Eagle
684631,648Weeping Water
683491,198Elmwood
68407995Murdock
68366888Greenwood
68455823Union
68409719Murray
68307503Avoca
68413451Nehawka
68016412Cedar Creek
68058330South Bend
68304287Alvo
68403215Manley

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