| Business | Phone |
| Living Word Christian Training 787 Smithtown Byp, Smithtown 11787 | (631) 360-1211 |
| Byzantine Catholic Church 37 Juniper Ave, Smithtown 11787 | (631) 724-4979 |
| Nanume Presbyterian Church 175 E Main St, Smithtown 11787 | (631) 360-8343 |
| First Presbyterian Church 175 E Main St, Smithtown 11787 | (631) 265-5151 |
| Grace Church 450 Edgewood Ave, Smithtown 11787 | (631) 265-4680 |
| Smithtown Gospel Tabernacle 1 Higbie Dr, Smithtown 11787 | (631) 265-2485 |
| Smithtown United Methodist Chr 230 E Main St, Smithtown 11787 | (631) 265-6945 |
| Smithtown-English & Sign Lang 221 Old Willets Path, Smithtown 11787 | (631) 265-4008 |
| St Andrew's Lutheran Church 6 New Mill Rd, Smithtown 11787 | (631) 265-2288 |
| St Patrick's Rc Church 280 E Main St, Smithtown 11787 | (631) 265-2271 |
| St Thomas-Canterbury Episcopal 90 Edgewater Ave, Smithtown 11787 | (631) 265-4520 |