ZIP codes in Bullitt County
12 ZIPs touch Bullitt County, Kentucky. The blue dashed line is the county border; orange ZIPs reach into it.
12
ZIP codes
9
cross the county line
217,058
people in these ZIPs
120
counties in KY
Most people
Bullitt County ZIP list
More counties in Kentucky
- Bourbon County11
- Boyd County6
- Boyle County7
- Bracken County8
- Breathitt County12
- Breckinridge County19
- Butler County14
- Caldwell County6
- Calloway County10
- Campbell County12
- Carlisle County4
- Carroll County8
Questions people actually ask
How many ZIP codes are in Bullitt County, Kentucky?
12 ZIP codes reach into Bullitt County, including 1 PO Box or single-address ZIPs placed by the town they serve. 9 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Bullitt County has the most people?
40299 (Louisville) has about 42,207 residents, the most of any ZIP touching Bullitt County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Bullitt 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 Bullitt 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