INDEPENDENT CITY · VA
Alexandria city, Virginia
Alexandria city is an independent city in Virginia with FIPS code 51510 and an estimated population of 155,230 (Census 2023), 13th largest of 133 in the state.
County facts
- Name
- Alexandria city
- State
- Virginia
- Type
- independent city
- FIPS code
- 51510
- State FIPS
- 51
- Population (2023)
- 155,230
- Change since 2020
- -2.5%
- State rank
- 13 of 133
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Alexandria city?
Alexandria city, Virginia has the five-digit FIPS code 51510: 51 for the state and 510 for the county.
What state is Alexandria city in?
Alexandria city is in Virginia.
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.