| Tutor Time of Ronkonkoma | 246 Carroll Avenue, Ronkonkoma, NY 11779 | Preschool |
| Developmental Disabilities Institute-Ronkonkoma Campus | 90 Air Park Drive, Ronkonkoma, NY 11779 | Center |
| Early Discoveries Center | 2210 Smithtown Avenue, Ronkonkoma, NY 11779 | Center |
| Kids Place Early Childhood Day School | 55 Trade Zone Dr, Ronkonkoma, NY 11779 | Center |
| SCOPE at Cherokee Street | 130 Cherokee St, Ronkonkoma, NY 11779 | Center |
| St Mary's Playtime Program | 315 Lakeshore Road, Ronkonkoma, NY 11779 | Center |