County Highway 31, Middlefield
- County Highway 31 Clarke, Edward H
- County Highway 31 Poulette, David M
- County Highway 31 Gnatek, Garrett
- County Highway 31 Winslow, Michael R
- County Highway 31 Brutsky, Alan
- County Highway 31 Poulette, David M
- County Highway 31 Nelson, Michael J
- County Highway 31 Valenza, Vincent L
- County Highway 31 Wierzchowski, Scott J
- County Highway 31 Luitje Martha
- County Highway 31 Clark Foundation
- County Highway 31 Clark Foundation
- County Highway 31 Hopper, Ian W
- County Highway 31 Deerslayer Llc
- County Highway 31 Village Of Cooperstown
- County Highway 31* Clark Foundation
- County Highway 31* Poulette, David M
- County Highway 31* Leatherstocking Railway
- County Highway 31* Clark Foundation
- County Highway 31* Clark Foundation
- 142 County Highway 31 Bluestonewall Properties, Llc
- 148 County Highway 31 Koroleski, Stanley
- 154 County Highway 31 Leonard, Jeanette A
- 182 County Highway 31 Lakewood Cemetery Assn
- 221 County Highway 31 Village Of Cooperstown
- 309 County Highway 31 Evergreen Trust
- 313 County Highway 31 Lokos Irrevocable Trust, Barbara
- 315 County Highway 31 Hopper, Ian W
- 324 County Highway 31 Clark Foundation
- 523 County Highway 31 Clark, Jane F Ii
- 625 County Highway 31 Clark, Jane F Ii
- 725 County Highway 31 Clark Foundation
- 755 County Highway 31 Willowdale Lodge Llc
- 911 County Highway 31 Clark Foundation
- 1047 County Highway 31 Camp & Conference Ministries, Vick & Pathfinder
- 1289 County Highway 31 Prentice, Thomas A
- 1291 County Highway 31 Clarke-Zaengle Living Trust
- 1340 County Highway 31 Gayeski, Thomas E
- 1379 County Highway 31 Macdonald, Kevin A
- 1382 County Highway 31 Brown Revocable Trust, Lacey S
- 1406 County Highway 31 Langar, Jan
- 1412 County Highway 31 Smaltz, James E
- 1425 County Highway 31 Schmidt, Steven
- 1429 County Highway 31 Laduke, David J
- 1436 County Highway 31 Poulette, David M
- 1445 County Highway 31 Hyde Bay Beach Club Inc
- 1450 County Highway 31 Poulette, David M
- 1454 County Highway 31 Poulette, David M
- 1468 County Highway 31 Randle, Michael
- 1484 County Highway 31 Laduke**, Barbara J
- 1496 County Highway 31 State Of New York
- 1744 County Highway 31* Middlespring Farm Llc