| Business | Phone |
| Brown Avenue Elementary School 14 Brown Ave, Johnston 2919 | (401) 934-0270 |
| Winsor Hill Elementary School 100 Theresa St, Johnston 2919 | (401) 831-4619 |
| Thornton Elementary School 4 School St, Johnston 2919 | (401) 943-7369 |
| St Rocco's School 931 Atwood Ave, Johnston 2919 | (401) 944-2993 |
| George C Calef Elementary Schl 7 Waveland Ave, Johnston 2919 | (401) 831-2653 |
| Graniteville Elementary School 6 Collins Ave, Johnston 2919 | (401) 231-8790 |
| Johnston High School 345 Cherry Hill Rd, Johnston 2919 | (401) 233-1920 |
| Johnston Public Schools Supt 10 Memorial Ave, Johnston 2919 | (401) 233-1900 |
| Johnston Special Education 10 Memorial Ave, Johnston 2919 | (401) 233-1935 |
| Nicholas Ferri Middle School 10 Memorial Ave, Johnston 2919 | (401) 233-1930 |
| Sarah D Barnes Elementary Schl 24 Barnes Ave, Johnston 2919 | (401) 231-8710 |