Helen St, Islip
- 145 Helen St Kolb Family 2022 Living Trust
- 148 Helen St Michael Jr & Susan Masullo
- 158 Helen St Ashley Lyn Buxbaum &
- 169 Helen St Rufino Alex Roman
- 170 Helen St Noreen O'Donnell
- 173 Helen St Salvatore & Lenore Berlingieri
- 178 Helen St Patricia Carney (Le)
- 180 Helen St Debra Santoianni
- 181 Helen St Debra Ann Diotaiuti
- 186 Helen St Debra Santoianni &
- 187 Helen St John & Diane Castorf
- 194 Helen St Katelyn M & Colleen M Jeffus
- 201 Helen St Dianka Martinez &
- 202 Helen St Michael & Maryann Catanzaro
- 204 Helen St Christina Jacono
- 205 Helen St Maria Khomyak-Cachia
- 212 Helen St Jonathan Mannella