Rio Grande City, TX zip code
Rio Grande City, Texas uses one zip code: 78582. Most of it is in Starr County. Together these zip codes are home to about 45K people.
Zip codes
1
Population
45K
All zips combined
Largest zip
78582
44,741 residents
Zip codes in Rio Grande City
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 78582 | 44,741 | $42,626 |