COUNTY · MD
Charles County, Maryland
Charles County is a county in Maryland with FIPS code 24017 and an estimated population of 171,973 (Census 2023), 10th largest of 24 in the state.
County facts
- Name
- Charles County
- State
- Maryland
- Type
- county
- FIPS code
- 24017
- State FIPS
- 24
- Population (2023)
- 171,973
- Change since 2020
- +3.1%
- State rank
- 10 of 24
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Charles County?
Charles County, Maryland has the five-digit FIPS code 24017: 24 for the state and 017 for the county.
What state is Charles County in?
Charles County is in Maryland.
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.