| Ithaca City School District Office | 607-274-2101 |
| Athletics | 607-274-2155 |
| Board of Education | 607-274-2102 |
| Business Office | 607-274-2121 |
| District Office | 607-274-2101 |
| Fine and Performing Arts | 607-274-2252 |
| Food Service | 607-274-2302 |
| Human Resources | 607-274-2138 |
| Facilities | 607-274-2333 |
| Special Education | 607-274-2264 |
| Superintendent | 607-274-6845 |
| Technology | 607-274-2311 |
| Transportation | 607-274-2128 |
 | High School |
 | Boynton Middle |
 | DeWitt Middle |
 | Lehman Alternative |
 | Belle Sherman |
 | Beverly Martin |
 | Caroline |
 | Cayuga Heights |
 | Enfield |
 | Fall Creek |
 | Northeast |
 | South Hill |
| As part of Phase 1 of the capital project, Ithaca High School’s main office was relocated to B Building (Activities) and the old main office area (J Building) was renovated into a wellness suite with guidance, nursing, and psychologist offices, as well as a flexible classroom area. The breezeway between J Building and the main gym was also secured to restrict unauthorized access to the school's courtyard. |
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