| Business | Phone |
| San Isidro Elementary Jr High 1017 Fm Rd, San Isidro 78588 | (956) 481-3107 |
| San Isidro Elementary School Fm 1017 Rd, San Isidro 78588 | (956) 481-3576 |
| San Isidro High School Fm 1017 Rd, San Isidro 78588 | (956) 481-3110 |
| San Isidro Independent Schools Highway 1017, San Isidro 78588 | (956) 481-3311 |
| San Isidro School District San Isidro 78588 | (956) 481-3145 |
| San Isidro School Supt Fm 1017, San Isidro 78588 | (956) 481-3104 |
| San Isidro Superintendents Ofc Fm Rd 1017, San Isidro 78588 | (956) 481-3631 |