| Business | Phone |
| Middle Island Baptist Church 698 Wading River Hollow Rd, Middle Island 11953 | (631) 924-9348 |
| Middle Island Christian Flwshp 271 Middle Country Rd, Middle Island 11953 | (631) 924-8617 |
| Middle Island Church Of God 109 Middle Island Blvd, Middle Island 11953 | (631) 924-4934 |
| Middle Island Presbyterian Chr 19 Longwood Rd, Middle Island 11953 | (631) 924-6443 |
| Middle Island United Church 645 Middle Country Rd, Middle Island 11953 | (631) 924-6201 |
| Great Commission Baptist Chr 93 W Bartlett Rd, Middle Island 11953 | (631) 696-3523 |
| Holy Trinity Lutheran Church Yaphank Middle Island Rd, Middle Island 11953 | (631) 924-6991 |
| Temple Baptist Church 63 Miller Place Yaphank Rd, Middle Island 11953 | (631) 924-4943 |