ZIP codes in Clark County
5 ZIPs touch Clark County, Kentucky. The blue dashed line is the county border; orange ZIPs reach into it.
5
ZIP codes
4
cross the county line
143,941
people in these ZIPs
120
counties in KY
Most people
Clark County ZIP list
More counties in Kentucky
- Campbell County12
- Carlisle County4
- Carroll County8
- Carter County11
- Casey County15
- Christian County17
- Clay County14
- Clinton County3
- Crittenden County7
- Cumberland County4
- Daviess County14
- Edmonson County12
Questions people actually ask
How many ZIP codes are in Clark County, Kentucky?
5 ZIP codes reach into Clark County, including 1 PO Box or single-address ZIPs placed by the town they serve. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Clark County has the most people?
40509 (Lexington) has about 47,036 residents, the most of any ZIP touching Clark County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Clark 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 Clark 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