Home > TX > Starr County > Rio Grande City > Zip 78582

Zip Code 78582 — Rio Grande City, TX

ZIP Code 78582 is associated with Rio Grande City, TX, in Starr County. The listed population estimate is 44,741; estimated density is 30.6 people per square mile. Among records with population estimates, it ranks #1 of 7 in Starr County and #192 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (26.539370, -98.739850)

Data MetricLocal Statistic
Postal / Zip Code78582
Primary CityRio Grande City
State / ProvinceTX
CountyStarr
Total Population44,741
Population Density30.6 people/sq mi
TimezoneAmerica/Chicago

How 78582 Compares

MetricZIP 78582Starr County recordsTX records
Population estimate44,74165,670 (sum)30,188,035 (sum)
Population Density30.6 /sq mi----
County population rank#1 of 7----
State population rank#192 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 78591Santa Elena15.0 mi158
ZIP 78584Roma15.2 mi18,464
ZIP 78547Garciasville16.2 mi306
ZIP 78548Grulla18.9 mi1,341
ZIP 78536Delmita19.7 mi371

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →