ZIP Code 78516 – Alamo, TX
Alamo, Texas · Hidalgo County · Central time
| ZIP code | 78516 |
|---|---|
| City | Alamo |
| State | Texas |
| County | Hidalgo County |
| Population | 34,370 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 37.82 sq mi |
| Center (lat, long) | 26.1445, -98.1213 |
Area codes in this area
These are the area codes that most often serve ZIP 78516 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 78516
ZIP code 78516 is assigned to Alamo, Texas. It lies in Hidalgo County. Its Census area covers about 37.82 square miles of land. The closest neighboring ZIP is 78589 (San Juan), about 2.4 miles away.
Every address in 78516 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources