100 Smallest ZIP Codes in the United States by Population in Starr County, Texas
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Starr County, Texas.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 78588 | SAN ISIDRO | TX | 124 |
| 2 | 78591 | SANTA ELENA | TX | 270 |
| 3 | 78547 | GARCIASVILLE | TX | 358 |
| 4 | 78536 | DELMITA | TX | 404 |
| 5 | 78545 | FALCON HEIGHTS | TX | 444 |
| 6 | 78548 | GRULLA | TX | 1,384 |
| 7 | 78584 | ROMA | TX | 17,721 |
| 8 | 78582 | RIO GRANDE CITY | TX | 44,988 |