Johnston County, North Carolina Zip Codes by Population (2024)

The most populated Zip Code in Johnston County, North Carolina is 27520, located in Clayton. * 2024 populations estimated based on the latest ACS 5-year data.

Zip Code
City
Population
27520Clayton46,059
27527Clayton34,321
27577Smithfield26,778
27576Selma20,011
27504Benson15,057
27524Four Oaks13,976
27542Kenly9,610
27569Princeton8,963
27568Pine Level1,509
27555Micro477
27593Wilsons Mills0