| Business | Phone |
| Christ Church Of Bellevue 3015 67th Ave Se, Mercer Island 98040 | (206) 232-1251 |
| Church-Jesus Christ-Lds 8355 Se 40th St, Mercer Island 98040 | (206) 236-2987 |
| Church-Jesus Christ-Lds 6155 90th Ave Se, Mercer Island 98040 | (206) 236-2193 |
| Congregational Church-Mercer 4545 Island Crest Way, Mercer Island 98040 | (206) 232-7800 |
| Emmanuel Episcopal Church 4400 86th Ave Se, Mercer Island 98040 | (206) 232-1572 |
| Christian Science Church 8685 Se 47th St, Mercer Island 98040 | (206) 232-0175 |
| Holy Trinity Lutheran Church 8501 Se 40th St, Mercer Island 98040 | (206) 232-3270 |
| Hope Of Seattle Church 6195 92nd Ave Se, Mercer Island 98040 | (206) 275-1042 |
| Iglesia Latinoamericana 3055 80th Ave Se 107, Mercer Island 98040 | (425) 746-7185 |
| Joint Youth Ministry-Mercer Is 4545 Island Crest Way, Mercer Island 98040 | (206) 236-8803 |