| Business | Phone |
| Colusa Alternative High School 817 Colus Ave, Colusa 95932 | (530) 458-2232 |
| Colusa Child Care Center 723 6th St, Colusa 95932 | (530) 458-2823 |
| Colusa County Community School 539 Oak St, Colusa 95932 | (530) 458-0332 |
| Colusa County Schools Supt 146 7th St, Colusa 95932 | (530) 458-0350 |
| Colusa County Special Ed 400 Fremont St # A, Colusa 95932 | (530) 458-8891 |
| Colusa District Superintendent 745 10th St, Colusa 95932 | (530) 458-7791 |
| Colusa High School 901 Colus Ave, Colusa 95932 | (530) 458-2156 |
| George T Egling Middle School 813 Webster St, Colusa 95932 | (530) 458-7631 |
| James Burchfield Primary Schl 400 Fremont St, Colusa 95932 | (530) 458-5853 |
| Our Lady Of Lourdes School 745 Ware Ave, Colusa 95932 | (530) 458-8208 |