THE HOPATCONG LAND BRIEF
Land in the
Glaciated Reading Prong/Hudson Highlands setting.
Hopatcong borough has 10.9 square miles of land in Sussex County. Its Census reference point is in Glaciated Reading Prong/Hudson Highlands, within Northeastern Highlands.
Forested hills and mountains span northern New England, the Adirondacks and higher Catskills. Glacial lakes and steep streams accompany a transition between northern hardwood and spruce-fir forests.
Regional context: Northeastern Highlands ↗ · Classification at the Census reference point
Hopatcong and Sussex County
Hopatcong is associated with Sussex County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Hopatcong by land and water
The Census records 1.53 square miles of water within Hopatcong, or 12.3% of its total area. It is 9.2 percentage points higher than the 3.2% recorded for Sussex County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Hopatcong borough has 5.1 times the land area of nearby Mount Arlington borough (2.14 square miles). These areas describe boundaries, not comparable property prices.

