COUNTY · TX
Hidalgo County, Texas
Hidalgo County is a county in Texas with FIPS code 48215 and an estimated population of 898,471 (Census 2023), 9th largest of 254 in the state.
County facts
- Name
- Hidalgo County
- State
- Texas
- Type
- county
- FIPS code
- 48215
- State FIPS
- 48
- Population (2023)
- 898,471
- Change since 2020
- +2.9%
- State rank
- 9 of 254
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Hidalgo County
Other counties in Texas
Questions
What is the FIPS code for Hidalgo County?
Hidalgo County, Texas has the five-digit FIPS code 48215: 48 for the state and 215 for the county.
What state is Hidalgo County in?
Hidalgo County is in Texas.
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.