Leonard St, Smithtown
- Leonard St Lasorsa-Etal, Arlene
- Leonard St 345 Building Corp
- 2 Leonard St Mameli, Walter/Debra
- 2 Leonard St Madigan, Adam/Carrie
- 3 Leonard St Obata, Takahito/Tomoko
- 4 Leonard St Rashty, Jeremy
- 6 Leonard St Burunkaya, Recep/Esra
- 8 Leonard St Mc Gill, Margaret
- 9 Leonard St Martinsen, Wayne
- 9 Leonard St Lane, Jonathan A
- 17 Leonard St Dichiara, Andrew/Janet
- 19 Leonard St Burmester, John
- 20 Leonard St Moss, George
- 22 Leonard St Ituarte, Andrea
- 24 Leonard St Nagle, Julia
- 26 Leonard St Negi, Shailendra
- 27 Leonard St Miller, David
- 31 Leonard St Smith, Diane B
- 37 Leonard St Lasorsa, Saverio/Carmen
- 42 Leonard St Morrison, William
- 46 Leonard St Akdag, Mehmet
- 52 Leonard St Spataro, Joseph/Brittany
- 56 Leonard St Esposito, Salvatore
- 58 Leonard St Marketta, Robert