| Business | Phone |
| Mid Valley Continuation Hs 1102 D St, Williams 95987 | (530) 473-2450 |
| Williams Child Care Dev 1404 E St, Williams 95987 | (530) 473-5335 |
| Williams Elementary School 1404 E St, Williams 95987 | (530) 473-2885 |
| Williams Elementary School 222 11th St, Williams 95987 | (530) 473-2885 |
| Williams High School 222 11th St, Williams 95987 | (530) 473-5369 |
| Williams Middle School 300 11th St, Williams 95987 | (530) 473-5304 |
| Williams Unified School Dist 260 11th St, Williams 95987 | (530) 473-2550 |