| Flatbrookville, New Jersey | |
|---|---|
| Unincorporated community | |
| Location within Sussex County. Inset: Location of Sussex County within New Jersey. | |
| Coordinates: 41°06′01″N 74°57′49″W / 41.10028°N 74.96361°WCoordinates: 41°06′01″N 74°57′49″W / 41.10028°N 74.96361°W | |
| Country |
|
| State |
|
| County | Sussex |
| Township | Walpack |
| Elevation | 106 m (348 ft) |
| GNIS feature ID | 876381 |
Flatbrookville is an unincorporated community located within Walpack Township, in Sussex County, New Jersey, United States. It is located near the Flat Brook, a tributary of the Delaware River.