ZIP codes in Johnston County
23 ZIPs touch Johnston County, North Carolina. The blue dashed line is the county border; orange ZIPs reach into it.
23
ZIP codes
16
cross the county line
534,727
people in these ZIPs
100
counties in NC
Most people
Johnston County ZIP list
More counties in North Carolina
- Henderson County22
- Hertford County9
- Hoke County9
- Hyde County7
- Iredell County21
- Jackson County13
- Jones County10
- Lee County7
- Lenoir County12
- Lincoln County12
- Macon County7
- Madison County6
Questions people actually ask
How many ZIP codes are in Johnston County, North Carolina?
23 ZIP codes reach into Johnston County, including 1 PO Box or single-address ZIPs placed by the town they serve. 16 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Johnston County has the most people?
27610 (Raleigh) has about 81,419 residents, the most of any ZIP touching Johnston County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Johnston County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Johnston County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from