ZIP codes in Butler County
14 ZIPs touch Butler County, Kentucky. The blue dashed line is the county border; orange ZIPs reach into it.
14
ZIP codes
8
cross the county line
112,622
people in these ZIPs
120
counties in KY
Most people
Butler County ZIP list
More counties in Kentucky
- Boyd County6
- Boyle County7
- Bracken County8
- Breathitt County12
- Breckinridge County19
- Bullitt County12
- Caldwell County6
- Calloway County10
- Campbell County12
- Carlisle County4
- Carroll County8
- Carter County11
Questions people actually ask
How many ZIP codes are in Butler County, Kentucky?
14 ZIP codes reach into Butler County, including 3 PO Box or single-address ZIPs placed by the town they serve. 8 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Butler County has the most people?
42101 (Bowling Green) has about 65,421 residents, the most of any ZIP touching Butler County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Butler 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 Butler 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