COUNTY · NY
Monroe County, New York
Monroe County is a county in New York with FIPS code 36055 and an estimated population of 748,482 (Census 2023), 9th largest of 62 in the state.
County facts
- Name
- Monroe County
- State
- New York
- Type
- county
- FIPS code
- 36055
- State FIPS
- 36
- Population (2023)
- 748,482
- Change since 2020
- -1.2%
- State rank
- 9 of 62
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Monroe County
Other counties in New York
Questions
What is the FIPS code for Monroe County?
Monroe County, New York has the five-digit FIPS code 36055: 36 for the state and 055 for the county.
What state is Monroe County in?
Monroe 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.