Long Lake (CDP), New York

The community is located in the northeastern part of Hamilton County, surrounding the southwestern half of the water body Long Lake. The center of the community is on the southeast side of the lake where New York State Route 30 crosses. The community extends southwest along Long Lake to include the hamlet of Deerland. Route 30 leads north 21 miles (34 km) to Tupper Lake and south 11 miles (18 km) to Blue Mountain Lake. New York State Route 28N runs east from Long Lake 14 miles (23 km) to Newcomb and south with Route 30 to Blue Mountain Lake.

According to the United States Census Bureau, the CDP has a total area of 13.9 square miles (36.1 km²), of which 11.7 square miles (30.4 km²) are land and 2.2 square miles (5.7 km²), or 15.86%, are water. Long Lake, the water body, runs northeast from the Long Lake CDP and is drained by the Raquette River, a north-flowing tributary of the Saint Lawrence River.