ZIP codes in Montgomery County
5 ZIPs touch Montgomery County, Kentucky. The blue dashed line is the county border; orange ZIPs reach into it.
5
ZIP codes
4
cross the county line
54,744
people in these ZIPs
120
counties in KY
Most people
Montgomery County ZIP list
More counties in Kentucky
- McLean County8
- Meade County12
- Menifee County5
- Mercer County5
- Metcalfe County10
- Monroe County6
- Morgan County11
- Muhlenberg County17
- Nelson County10
- Nicholas County6
- Ohio County17
- Oldham County12
Questions people actually ask
How many ZIP codes are in Montgomery County, Kentucky?
5 ZIP codes reach into Montgomery County. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Montgomery County has the most people?
40353 (Mount Sterling) has about 22,725 residents, the most of any ZIP touching Montgomery County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Montgomery 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 Montgomery 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