ZIP codes in Morgan County
14 ZIPs touch Morgan County, Indiana. The blue dashed line is the county border; orange ZIPs reach into it.
14
ZIP codes
11
cross the county line
116,386
people in these ZIPs
92
counties in IN
Most people
Morgan County ZIP list
More counties in Indiana
- Marion County65
- Marshall County15
- Martin County7
- Miami County15
- Monroe County23
- Montgomery County17
- Newton County13
- Noble County18
- Ohio County5
- Orange County11
- Owen County14
- Parke County14
Questions people actually ask
How many ZIP codes are in Morgan County, Indiana?
14 ZIP codes reach into Morgan County. 11 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Morgan County has the most people?
46151 (Martinsville) has about 32,446 residents, the most of any ZIP touching Morgan County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Morgan 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 Morgan 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