| Post Office Name | City/State | Address | Phone Number | Action |
|---|---|---|---|---|
| Lake Ronkonkoma Post Office | Ronkonkoma, NY 11779 | 300 Portion Rd | 6315881292 | View Details Get Directions |
| Ronkonkoma Post Office | Ronkonkoma, NY 11779 | 200 Hawkins Ave | 6315880301 | View Details Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 1507 Round Pond Rd | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 160 Remington Blvd | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 2 Trade Zone | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 2 Trade Zone Dr | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 200 13th Ave | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 3075 Veterans Hwy | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 416 Hawkins Ave | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 4175 Veterans Hwy | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 45 Church St | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 45 N Nob Hl | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 47 Richmond Blvd | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 500 Peconic St | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 601 Portion Rd | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 711 Koehler Ave | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 90 Railroad Avenue | -- | Get Directions |
| Public Collection Box | Ronkonkoma, NY 11779 | 999 Marconi Ave | -- | Get Directions |
