| City : | San Isidro |
| County : | Starr County |
| State : | Texas (TX) |
| Land Area : | 3.10 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 26.7136190 |
| Longitude : | -98.4479022 |
| Population (2010): | 240 |
| Population Estimate (2012) : | 247 |
| Population Density : | 77.34/sq mi |
| Housing Units (2012) : | 112 |
| Median Household Income (2012) : | $41,563 (Texas : $51,563, USA : $53,046) |
| Median Family Income (2012) : | $51,875 (Texas : $60,621, USA : $64,585) |
| Median House Price (2012) : | $17,000 (Texas : $128,000, USA : $181,400) |