| Business | Phone |
| Hennessey Elementary School 130 N Mitchell Rd, Hennessey 73742 | (405) 853-4305 |
| Hennessey Middle School 120 N Mitchell Ave, Hennessey 73742 | (405) 853-4303 |
| Hennessey Schools 707 E Oklahoma St, Hennessey 73742 | (405) 853-4396 |
| Hennessey Superintendent 604 E Oklahoma St, Hennessey 73742 | (405) 853-4321 |
| Vocational Agriculture 707 E Oklahoma St, Hennessey 73742 | (405) 853-4308 |