COUNTY · MD

Anne Arundel County, Maryland

Anne Arundel County is a county in Maryland with FIPS code 24003 and an estimated population of 594,582 (Census 2023), 4th largest of 24 in the state.

County facts

Name: Anne Arundel County
State: Maryland
Type: county
FIPS code: 24003
State FIPS: 24
Population (2023): 594,582
Change since 2020: +0.9%
State rank: 4 of 24

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in Maryland

Montgomery County Prince George's County Baltimore County Baltimore city Howard County Frederick County Harford County Carroll County All 24

Questions

What is the FIPS code for Anne Arundel County?

Anne Arundel County, Maryland has the five-digit FIPS code 24003: 24 for the state and 003 for the county.

What state is Anne Arundel County in?

Anne Arundel 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.