| Business | Phone |
| Family Court 48 Court St, Canton 13617 | (315) 379-2410 |
| St Lawrence County Court Clerk 48 Court St, Canton 13617 | (315) 379-2219 |
| St Lawrence County Judge 48 Court St, Canton 13617 | (315) 379-2214 |
| St Lawrence Surrogate Court 48 Court St, Canton 13617 | (315) 379-2217 |
| Supreme Court 48 Court St, Canton 13617 | (315) 379-0326 |