Hidalgo County is in South Texas in the Lower Rio Grande Valley. Its major communities include Edinburg, McAllen, Mission, and Pharr, and its southern edge follows the border with Mexico.
Hidalgo County facts
County estimates: American Community Survey (ACS) 2020–2024 5-year release. Boundary and land area: U.S. Census Bureau TIGERweb. Data may change as sources are updated.
Interactive Hidalgo County map
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Map tiles © OpenStreetMap contributors. Map boundaries are not legal property lines. Scroll-wheel zoom is disabled to make page scrolling easier.
Where is Hidalgo County?
Hidalgo County is in South Texas in the Lower Rio Grande Valley. Its major communities include Edinburg, McAllen, Mission, and Pharr, and its southern edge follows the border with Mexico.
Hidalgo County is part of a binational region with substantial cross-border travel and commerce. Its population and housing estimates should be read as countywide measures rather than figures for one city.
Hidalgo County FIPS code explained
The five-digit county FIPS code is 48215. The first two digits, 48, identify Texas. The final three digits, 215, identify Hidalgo County within Texas. Keep all five digits when searching Census data or joining geographic datasets.
Population, income, housing, and county boundaries
The population, median income, home-value, median-age, and poverty figures shown above come from the 2020–2024 ACS 5-year estimates. They are survey-based estimates, not a real-time count. Median home value refers to owner-occupied homes, and the income and housing figures use the release’s inflation-adjusted dollar basis.
The land-area and interactive boundary map come from the Census Bureau’s current TIGERweb county layer. Population density is calculated here by dividing the ACS population estimate by the TIGERweb land area in square miles. These sources describe different reference periods, so minor differences may occur.
Compare Hidalgo County with other Texas counties
Compare Hidalgo County with Bexar County for another large South Texas area, or Harris County for an urbanized region on a different scale. Open Bexar County and Harris County, or choose any two counties with the county comparison tool.
Frequently asked questions
What is the county seat of Hidalgo County?
The county seat is Edinburg. A county seat is the community where the county government is based. It does not necessarily include every resident or community in the county.
Where can I verify the FIPS code and boundaries?
Use the County FIPS Code Lookup and the U.S. Census Bureau geography resources. The interactive map is intended for general orientation, not property surveys, voting districts, emergency jurisdiction, or legal determinations.
Why might a county statistic show “Unavailable”?
Some data are unavailable or an external service may be temporarily unreachable. The map and estimates are requested from Census-related APIs in your browser. For more details on sources and limitations, read our Data and Methodology page.
More county mapping tools
Explore the Texas county directory, find the county associated with a ZIP Code, or use What County Am I In? for a location-based lookup.