| Landowner | Properties | Area In Sturbridge Acres |
|---|---|---|
| Department of Fish and Game | 6 | 1463 |
| Town of Sturbridge | 7 | 947 |
| Hull Wood Products | 2 | 539 |
| Plimpton F | 1 | 291 |
| The Opacum Land Trust, Inc. | 1 | 255 |
| Army Corps of Engineers | 7 | 197 |
| Outdoor World Inc | 1 | 174 |
| Kacavich C | 1 | 69 |
| Us Filter | 1 | 68 |
| The Trustees of Reservations | 1 | 59 |
| Walker Pond Association | 6 | 47 |
| Secretary of The Commonwealth | 1 | 1.4 |
| Commonwealth of Massachusetts | 1 | 0.9 |
| Gary Giller | 1 | 0.4 |