| Business | Phone |
| Vocational Ag Shop 17000 Summitview Rd, Cowiche 98923 | (509) 678-4840 |
| Marcus Whitman Cowiche 1181 Thompson Rd, Cowiche 98923 | (509) 678-4435 |
| Highland High School 17000 Summitview Rd, Cowiche 98923 | (509) 678-7268 |
| Highland Superintendent's Ofc 17000 Summitview Rd, Cowiche 98923 | (509) 678-4173 |