Ontario St, Oswego, City
- 1 Ontario St La Plante, Lisa M
- 3 Ontario St Smith, David R
- 5 Ontario St Losurdo, Donald J
- 5 Rear Ontario St Losurdo, Donald J
- 7 Ontario St Vincent, Bradley C
- 9 Ontario St Maksim, Andrea R
- 20 Ontario St Dean, Patrick
- 22 Ontario St Canale, Tracy L
- 24 Ontario St Javco Properties Llc
- 26 Ontario St Vivlamore, Tricia R
- 28 Ontario St Kirk, Alyse C
- 31 Ontario St Familo, Lisa
- 37 Ontario St Columbus, Kim
- 39 Ontario St Curro, Joseph C
- 40 Ontario St Purtell, Daniel W
- 41 Ontario St Hogan, Michael P
- 42 Ontario St Beckwith, Michael R Sr
- 44 Ontario St Beckwith, Michael R Sr
- 45 Ontario St Caroccio, Shawn
- 46 Ontario St Louis, Bobbi-Jo
- 47 Ontario St Blount, Edward G Jr
- 48 Ontario St Louis, Bobbi-Jo
- 49 Ontario St Hilton, Janet M
- 51 Ontario St Lafurney, Michael
- 56 Ontario St Walker, Lee B Jr
- 58 Ontario St Caroccio Family Rev Trust
- 59 Ontario St Benincasa, James M
- 61 Ontario St Walker, Lee
- 62 Ontario St D&R Properties
- 64 Ontario St Lizotte, David
- 65 Ontario St Hall, Daniel E
- 66 Ontario St Kells, Thomas J
- 67 Ontario St Morgan & Towers, Llc
- 68 Ontario St Cayuga Street Llc
- 69 Ontario St Donabella, Mark
- 70 Ontario St Burger, Charles
- 70 Rear Ontario St Burger, Charles
- 71 Ontario St Farley, Valerie
- 72 Ontario St Patterson, Eleanor
- 73 Ontario St Malone, Jack
- 74 Ontario St Senquiz, Stefinie
- 85 Ontario St Baldwin, George
- 86 Ontario St Iorizzo, Luciano
- 87 Ontario St Kaczmarskj, Ryan R
- 88 Ontario St Mc Mahon, Karen A
- 89 Ontario St Lower, Robin
- 90 Ontario St Spera, Nicholas A
- 91 Ontario St Baldwin, James F
- 92 Ontario St Woods, Steven
- 94 Ontario St Hickey, Brian
- 95 Ontario St Briggs, Jeremy
- 96 Ontario St Bryan, Daniel P
- 97 Ontario St Lcb Enterprises Of Cny, Inc.
- 98 Ontario St Knopp, Eugene A
- 99 Ontario St Caroccio, Shawn
- 100 Ontario St Curran, Yolanda
- 104 Ontario St Qre Properties Llc