| Business | Phone |
| Highway Garage 110 State Highway 331, St Johnsville 13452 | (518) 568-2836 |
| St Johnsville Housing Authorit 11 Old Meadow Rd, St Johnsville 13452 | (518) 568-2214 |
| St Johnsville Village Clerk 16 Washington St, St Johnsville 13452 | (518) 568-2221 |
| St Johnsville Village Water 1477 Lasselsville Rd, St Johnsville 13452 | (518) 568-3139 |
| St Johnsville Vlg Justice Crt 16 Washington St, St Johnsville 13452 | (518) 568-5298 |
| St Johnsville Waste Water Plnt S Bridge St, St Johnsville 13452 | (518) 568-2545 |
| St Johnsville Youth Center 23 E Main St, St Johnsville 13452 | (518) 568-7441 |