ZIP codes in St. Johns County

14 ZIPs touch St. Johns County, Florida. The blue dashed line is the county border; orange ZIPs reach into it.

14

ZIP codes

6

cross the county line

359,084

people in these ZIPs

67

counties in FL

Most people

St. Johns County ZIP list

Questions people actually ask

How many ZIP codes are in St. Johns County, Florida?

14 ZIP codes reach into St. Johns County, including 2 PO Box or single-address ZIPs placed by the town they serve. 6 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in St. Johns County has the most people?

32259 (Saint Johns) has about 75,016 residents, the most of any ZIP touching St. Johns County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in St. Johns 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 St. Johns 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.

Updated 2026-11-10 · Where the data comes from