Union St, Islip
- Union St Joseph Schurz &
- 49 Union St Herbert & Mary Ann Seib
- 53 Union St Carol Matson
- 54 Union St Susan A Farrell
- 858 Union St John & Marianne Savage
- 859 Union St Joan Charron &
- 864 Union St Raymond Wilson &
- 865 Union St Gerald T Jr & Nora Breiner
- 870 Union St Michael F & Lauren A Focarile
- 873 Union St Estate Of Josephine Mattes
- 878 Union St Christopher & Stacy Iovino
- 881 Union St Selvin R Veliz
- 888 Union St Gary & Christine Amato
- 889 Union St Jos & Irene Marchese (Le)
- 891 Union St Phyllis Ferrantello
- 892 Union St Gail Thielke
- 907 Union St Petrus Brouwer
- 908 Union St Neal Heaton Jr & Maggie P Emma
- 912 Union St Theresa Banoff
- 915 Union St Christopher Chanowsky &
- 916 Union St Danielle Tammone
- 920 Union St Paul Debrino
- 921 Union St Piotr Gron & Anida Gron &
- 930 Union St William Johnston Iii &
- 933 Union St Georgia Aalto
- 936 Union St Gloria Betty Rysanek (Le)
- 940 Union St Richard & Patricia A Antonick
- 941 Union St Addison Cornwell &
- 944 Union St 944 Union Street Llc
- 945 Union St Hollie Bailis & Steven Silva
- 949 Union St Ronald Jr & Marie Stegner
- 950 Union St Gary & Karen Rowland