| City : | San Carlos |
| County : | Hidalgo County |
| State : | Texas (TX) |
| Land Area : | 1.81 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 26.2956681 |
| Longitude : | -98.0630524 |
| Population (2010): | 3,130 |
| Population Estimate (2012) : | 3,840 |
| Population Density : | 1,731.48/sq mi |
| Housing Units (2012) : | 861 |
| Median Household Income (2012) : | $26,728 (Texas : $51,563, USA : $53,046) |
| Median Family Income (2012) : | $27,697 (Texas : $60,621, USA : $64,585) |
| Median House Price (2012) : | $45,100 (Texas : $128,000, USA : $181,400) |
San Carlos Zip Codes
| 78542 (63,293) |