| Business | Phone |
| Wsu Co-Op Extension 310 N Main St 209, Colfax 99111 | (509) 397-6290 |
| Whitman County Commissioners 400 N Main St, Colfax 99111 | (509) 397-6200 |
| Whitman County Computer Ctr 301 N Mill St, Colfax 99111 | (509) 397-6228 |
| Whitman County Courthouse 404 N Main St, Colfax 99111 | (509) 397-4622 |
| Whitman County Human Resources 400 N Main St, Colfax 99111 | (509) 397-6205 |
| Whitman County Juvenile Prbtn 400 N Main St, Colfax 99111 | (509) 397-6246 |
| Whitman County Sign Shop 201 Duncan Springs Rd, Colfax 99111 | (509) 397-3615 |
| Whitman County Switchboard 310 N Main St, Colfax 99111 | (509) 397-4622 |
| Palouse Empire Fair Office 310 N Main St, Colfax 99111 | (509) 397-6263 |