| Business | Phone |
| Advent Lutheran Church 1100 Bayer Rd, Mattituck 11952 | (631) 298-8319 |
| Calvary Baptist Church Mill Ln, Mattituck 11952 | (631) 727-4112 |
| Mattituck Presbyterian Church 12605 Main Rd, Mattituck 11952 | (631) 298-4145 |
| Church Of The Redeemer 13225 Sound Ave, Mattituck 11952 | (631) 298-4277 |
| Church Of Transfiguration 1162 Breakwater Rd, Mattituck 11952 | (631) 298-9652 |
| Community Christian Fellowship Po Box 612, Mattituck 11952 | (631) 298-4930 |
| North Fork Church Of Christ Sound Ave, Mattituck 11952 | (631) 298-9377 |
| Faith Reformed Baptist Church 13000 Main Rd, Mattituck 11952 | (631) 298-1383 |
| Unity Baptist Church Factory Ln, Mattituck 11952 | (631) 298-8669 |