| Business | Phone |
| Blanche Thomas High School 708 E Washington St, Sentinel 73664 | (580) 393-2112 |
| Head Start Child Development 3rd & Grantamp;, Sentinel 73664 | (580) 393-4303 |
| Mc Murray Elementary School 708 E Washington St, Sentinel 73664 | (580) 393-4997 |
| Sentinel Superintendent's Office 708 E Washington St, Sentinel 73664 | (580) 393-2101 |