ZIP codes in Fulton County
19 ZIPs touch Fulton County, Indiana. The blue dashed line is the county border; orange ZIPs reach into it.
19
ZIP codes
13
cross the county line
41,668
people in these ZIPs
92
counties in IN
Most people
Fulton County ZIP list
More counties in Indiana
- Dubois County16
- Elkhart County19
- Fayette County9
- Floyd County13
- Fountain County10
- Franklin County15
- Gibson County17
- Grant County15
- Greene County18
- Hamilton County27
- Hancock County17
- Harrison County16
Questions people actually ask
How many ZIP codes are in Fulton County, Indiana?
19 ZIP codes reach into Fulton County, including 2 PO Box or single-address ZIPs placed by the town they serve. 13 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Fulton County has the most people?
46975 (Rochester) has about 13,824 residents, the most of any ZIP touching Fulton County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Fulton 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 Fulton 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.
Keep exploring
Updated 2026-11-10 · Where the data comes from