San Carlos I, Texas
San Carlos I, Texas  | |
|---|---|
| Coordinates: 27°29′26″N 99°22′21″W / 27.49056°N 99.37250°W | |
| Country | United States | 
| State | Texas | 
| County | Webb | 
| Area | |
 • Total  | 0.1 sq mi (0.3 km2) | 
| • Land | 0.1 sq mi (0.3 km2) | 
| • Water | 0.0 sq mi (0 km2) | 
| Elevation | 538 ft (164 m) | 
| Population  (2020)  | |
 • Total  | 187 | 
| • Density | 1,900/sq mi (720/km2) | 
| Time zone | UTC-6 (Central (CST)) | 
| • Summer (DST) | UTC-5 (CDT) | 
| Zip Code | 78043  | 
| GNIS feature ID | 2584731 | 
San Carlos I is a census-designated place (CDP) in Webb County, Texas, United States. This was a new CDP formed from parts of the Laredo Ranchettes CDP prior to the 2010 census, with a population of 316.
It is one of several colonias in Webb County.