COUNTY · PA

Clinton County, Pennsylvania

Clinton County is a county in Pennsylvania with FIPS code 42035 and an estimated population of 37,607 (Census 2023), 55th largest of 67 in the state.

County facts

Name
Clinton County
State
Pennsylvania
Type
county
FIPS code
42035
State FIPS
42
Population (2023)
37,607
Change since 2020
+0.6%
State rank
55 of 67

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in Pennsylvania

Questions

What is the FIPS code for Clinton County?

Clinton County, Pennsylvania has the five-digit FIPS code 42035: 42 for the state and 035 for the county.

What state is Clinton County in?

Clinton County is in Pennsylvania.

How do I know if an address is in this county?

Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.

Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.