ZIP codes in Clinton County
17 ZIPs touch Clinton County, Pennsylvania. The blue dashed line is the county border; orange ZIPs reach into it.
17
ZIP codes
6
cross the county line
54,232
people in these ZIPs
67
counties in PA
Most people
Clinton County ZIP list
More counties in Pennsylvania
- Cameron County4
- Carbon County21
- Centre County37
- Chester County68
- Clarion County37
- Clearfield County57
- Columbia County20
- Crawford County29
- Cumberland County25
- Dauphin County48
- Delaware County57
- Elk County17
Questions people actually ask
How many ZIP codes are in Clinton County, Pennsylvania?
17 ZIP codes reach into Clinton County, including 1 PO Box or single-address ZIPs placed by the town they serve. 6 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Clinton County has the most people?
17745 (Lock Haven) has about 17,718 residents, the most of any ZIP touching Clinton County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Clinton 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 Clinton 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