Hidalgo County, Texas population

County or county equivalent · Official geographic code 48215

921,549

· Annual resident population estimate

U.S. Census Bureau · Population Estimates Program · Vintage 2025

+7,937 residents (+0.87%) since July 1, 2024.

Hidalgo County had an estimated 921,549 residents on July 1, 2025, the 9th most populous of 254 counties and county equivalents in Texas. Its population grew 0.87% between July 2024 and July 2025, compared with +1.25% for Texas and +0.52% for the United States.

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Population change, 2020–2025
+48,796July 1 to July 1 · +5.59%
Land-area density, 2025
586.5People per square mile · 2025 land area
Rank in Texas, 2025
9 of 25464 of 3,144 nationally

Hidalgo County population history

Open historical explorer

The six July 1 estimates in the table belong to one consistent Vintage 2025 series. The Census Bureau revises earlier years when it releases a new vintage; a figure from an older publication may differ from the value below.

Hidalgo County population, 2010–2025: 2010–2020 intercensal estimates (2020 boundaries) and Vintage 2025 estimates (2025 boundaries) 939.2k845.9k752.7k 2010201520202025

Vintage 2025, July 1, 2020–2025 Intercensal, 2010–2020

The highest observed population in this annual series was 921,549 in 2025. This is a peak within 2020–2025 coverage, not an all-time record.

Hidalgo County, Texas: July 1 annual population estimates, Vintage 2025
Reference datePopulationAnnual change
July 1, 2020872,753—
July 1, 2021879,576+6,823
July 1, 2022888,619+9,043
July 1, 2023901,096+12,477
July 1, 2024913,612+12,516
July 1, 2025921,549+7,937
Why is the April 2020 estimates base different from a census count?

The PEP estimates base here is 870,788 residents on April 1, 2020. It incorporates the Census Bureau’s corrections and geographic revisions and serves as the starting point for this annual series. It is not labeled an original 2020 census count. The chart starts at July 1, 2020, so its five-year change uses two July observations. Read about measurement types.

Hidalgo County population by year, 2010–2020

From the April 2010 estimates base to the April 2020 census count, Hidalgo County gained 96,050 residents (+12.4%). These Census Bureau intercensal estimates use 2020 boundaries and were released in November 2024.

Hidalgo County: 2010–2020 intercensal population estimates and April 1, 2020 census count, 2020 boundaries
DatePopulationAnnual change
April 1, 2010 · estimates base774,734—
July 1, 2010779,013—
July 1, 2011794,911+15,898
July 1, 2012807,220+12,309
July 1, 2013817,021+9,801
July 1, 2014827,724+10,703
July 1, 2015837,085+9,361
July 1, 2016845,787+8,702
July 1, 2017852,451+6,664
July 1, 2018858,162+5,711
July 1, 2019864,302+6,140
April 1, 2020 · census count870,784—

The April 2020 census count (870,784) and the Vintage 2025 April 2020 base (870,788) differ by 4. The gap comes from boundary changes and the Census Bureau’s revised 2020 base, not population change, so measure growth within one series. Source and download

Growth and density

Between July 1, 2020 and July 1, 2025, Hidalgo County gained 48,796 residents, a 5.59% increase. The annualized change over these five elapsed years was +1.09%. Annualized change is a summary of the interval; it does not imply that the population changed at that rate in every year.

The 2025 Gazetteer reports 1,571.22 square miles of land. Dividing the July 1, 2025 population by that compatible land area gives 586.5 people per square mile. Water area is excluded. Density depends on geographic boundaries. It describes this entire geography, rather than a typical neighborhood or built-up area.

Calculations use unrounded source values. Population counts are displayed as integers, percentages to two decimals and density to one decimal. Calculation methods · Growth calculator

Components of population change

The published components cover July 1, 2024 through June 30, 2025. Natural change equals births minus deaths. Net migration is arrivals minus departures; it does not establish why people moved.

Natural change
+8,840
Net domestic migration
-1,278
Net international migration
+268
Residual
+107
Source-published components, annual interval ending June 30, 2025
ComponentPeople
Births14,063
Deaths5,223
Natural change+8,840
Net domestic migration-1,278
Net international migration+268
Residual+107
Total population change+7,937

Reconciliation: natural change + net domestic migration + net international migration + residual = +7,937. Births and deaths are already included in natural change and must not be added again. Source: co-est2025-alldata.csv; Vintage 2025.

How Hidalgo County compares

Growth rates below use the same Vintage 2025 series for every row, so they can be compared directly. A county’s rate reflects all of its towns and unincorporated areas together.

Population and growth compared with larger geographies, Vintage 2025
GeographyPopulation · 2025Growth · 2024–25Growth · 2020–25
Hidalgo County921,549+0.87%+5.59%
Texas31,709,821+1.25%+8.45%
United States341,784,857+0.52%+3.08%

Hidalgo County demographics: age, race and income

The median age in Hidalgo County is 30.5 years, compared with 35.6 in Texas. 20.6% of adults 25 and older hold a bachelor’s degree or higher, and the median household income is $54,338. About 26.7% of residents live below the poverty level, and 26.1% were born outside the United States.

These are American Community Survey 5-year estimates for 2020–2024. They describe the 60 months ending in December 2024, come from a sample survey with the margins of error shown, and are separate from the July 1, 2025 population estimate above.

Hidalgo County population characteristics, ACS 2020–2024 5-year estimates with 90 percent margins of error
CharacteristicHidalgo CountyMarginTexasU.S.
Age and sex
Median age30.5±0.135.638.9
Under 18 years31.0%±0.325.0%22.0%
65 years and over11.7%±0.213.4%17.2%
Female50.6%±<0.150.1%50.5%
Race and Hispanic origin
Hispanic or Latino (any race)91.9%±<0.139.7%19.3%
White alone, not Hispanic6.0%±0.139.1%57.4%
Black alone, not Hispanic0.6%±<0.111.9%11.9%
Asian alone, not Hispanic1.0%±<0.15.5%5.9%
American Indian and Alaska Native, not Hispanic0.1%±<0.10.1%0.5%
Native Hawaiian and Pacific Islander, not Hispanic0.0%±<0.10.1%0.2%
Some other race, not Hispanic0.1% *±0.10.4%0.6%
Two or more races, not Hispanic0.3%±0.13.1%4.3%
Born outside the United States26.1%±0.617.6%14.1%
Households and education
Households270,210±1,46510,992,816129,227,496
Average household size3.27±0.022.692.53
Bachelor’s degree or higher, age 25+20.6%±0.633.8%35.7%
Income and poverty
Median household income$54,338±$1,156$78,476$80,734
Below the poverty level26.7%±0.913.8%12.5%

Margins are 90% margins of error. * The margin is large relative to the estimate (coefficient of variation above 30%); treat it as approximate. Percentages are computed from published Summary File counts with Census Bureau margin formulas. ACS survey population: 891,977; 2024 boundaries. Source and download

Geographic context

County equivalents include parishes, boroughs, census areas, independent cities, DC and Connecticut planning regions where represented by Census. The places listed below are whole-city observations and can extend into other counties. Summing them will not reproduce this county total.

Resident population, July 1, 2025; change since July 1, 2024. PEP Vintage 2025.
PlacePopulation · 2025Change · 2024–25Growth · 2024–25People / sq. mi.
McAllenTexas · Incorporated place · 4845384150,640+1,985+1.34%2,415.3
EdinburgTexas · Incorporated place · 4822660110,700+1,808+1.66%2,346.0
MissionTexas · Incorporated place · 484876888,992+514+0.58%2,449.4
PharrTexas · Incorporated place · 485720080,830-208-0.26%3,309.8
WeslacoTexas · Incorporated place · 487727244,203+364+0.83%2,608.2
San JuanTexas · Incorporated place · 486551637,868+570+1.53%3,125.7
AltonTexas · Incorporated place · 480221224,138+1,310+5.74%3,177.3
AlamoTexas · Incorporated place · 480157620,625+5+0.02%2,682.6
MercedesTexas · Incorporated place · 484770017,915+425+2.43%1,518.3
DonnaTexas · Incorporated place · 482088416,698-162-0.96%2,013.7

Showing 10 of 22 related records.

Texas population · State city directory · City proper versus county versus metro

Texas counties and county equivalents with nearby population ranks

Neighboring 2025 population ranks within Texas. Similar population does not imply similar density, boundaries or demographics.

Resident population, July 1, 2025; change since July 1, 2024. PEP Vintage 2025.
PlacePopulation · 2025Change · 2024–25Growth · 2024–25People / sq. mi.
Denton County1,069,346+23,120+2.21%1,216.9
Fort Bend County975,191+24,163+2.54%1,131.2
El Paso County877,858-2,036-0.23%866.1
Montgomery County781,194+30,011+4.00%749.6

Source, citation and downloads

U.S. Census Bureau, Population Estimates Program, Vintage 2025, co-est2025-alldata.csv, variable POPESTIMATE2025; Hidalgo County, Texas, geographic code 48215; resident population 921,549 on July 1, 2025; boundaries January 1, 2025. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/totals/co-est2025-alldata.csv. Retrieved September 30, 2026. US Population Data snapshot pep-2025-r1, transformation 1.

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