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Where am ILOCATED

Starr County, Texas

Starr County, Texas, has 66,319 residents (July 2025 estimate). Its county seat is Rio Grande City. It uses Central Time and covers 1,223 sq mi (3,168 km²) of land.

HoustonSan AntonioDallas
Starr County in Texas
Hidalgo CountyRio Grande CityRomaMikes
Starr County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
66,319
Land area
1,223 sq mi (3,168 km²)
County seat or government
Rio Grande City
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$37,639 ± $4,431
Median home value
$95,100 ± $7,540
Median rent, with utilities
$726 ± $32
Homes lived in by their owners
69.5% ± 2.5 points
County type
County
Metro or micro area
Rio Grande City-Roma, TX micro areaCentral county
Water area
5.94 sq mi (15.4 km²)
State
Texas
County code (FIPS)
48427
Coordinates (central point)
26.530903, -98.740235
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Starr County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 7858244,741 people
  2. 7858418,464 people
  3. 785956,118 people
  4. 785481,341 people
  5. 78545392 people
  6. 78536371 people
  7. 78547306 people
  8. 78588289 people
  9. 78591158 people
  10. 7856392 people
  11. 785850 people

11 ZIP Code areas overlap Starr County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Starr County, largest first

  1. Rio Grande City Grulla Independent School District42,671 people
  2. Roma Independent School District22,589 people
  3. San Isidro Independent School District807 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Rio Grande City, Texas (city)15,396 people
  2. Roma, Texas (city)11,545 people
  3. Escobares, Texas (city)2,573 people
  4. Las Lomas, Texas (CDP)2,154 people
  5. Mikes, Texas (CDP)1,688 people
  6. La Grulla, Texas (city)1,341 people
  7. Alto Bonito Heights, Texas (CDP)1,121 people
  8. Mi Ranchito Estate, Texas (CDP)1,091 people
  9. Nina, Texas (CDP)965 people
  10. West Alto Bonito, Texas (CDP)822 people
  11. El Refugio, Texas (CDP)780 people
  12. El Rancho Vela, Texas (CDP)623 people
All 115
  1. La Puerta, Texas (CDP)582 people
  2. El Castillo, Texas (CDP)566 people
  3. Garza-Salinas II, Texas (CDP)559 people
  4. Mesquite, Texas (CDP)515 people
  5. Santa Rosa, Texas (CDP)502 people
  6. Olivia Lopez de Gutierrez, Texas (CDP)455 people
  7. Valle Vista, Texas (CDP)424 people
  8. El Cenizo, Texas (CDP)377 people
  9. Camargito, Texas (CDP)376 people
  10. Regino Ramirez, Texas (CDP)369 people
  11. J.F. Villareal, Texas (CDP)353 people
  12. La Esperanza, Texas (CDP)347 people
  13. East Alto Bonito, Texas (CDP)340 people
  14. La Minita, Texas (CDP)337 people
  15. Flor del Rio, Texas (CDP)326 people
  16. Palo Blanco, Texas (CDP)321 people
  17. La Paloma Ranchettes, Texas (CDP)319 people
  18. Pablo Pena, Texas (CDP)319 people

See all 115 cities, towns and communities in Starr County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Hidalgo County, Texas36 mi east
  2. Jim Hogg County, Texas36 mi north
  3. Zapata County, Texas42 mi northwest
  4. Brooks County, Texas48 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.