COUNTY · NY

Lewis County, New York

Lewis County is a county in New York with FIPS code 36049 and an estimated population of 26,548 (Census 2023), 59th largest of 62 in the state.

County facts

Name
Lewis County
State
New York
Type
county
FIPS code
36049
State FIPS
36
Population (2023)
26,548
Change since 2020
-0.0%
State rank
59 of 62

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in New York

Questions

What is the FIPS code for Lewis County?

Lewis County, New York has the five-digit FIPS code 36049: 36 for the state and 049 for the county.

What state is Lewis County in?

Lewis County is in New York.

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.