Looking for real estate in Hadley? Hadley is a town in Saratoga County New York (NY). The Town of Hadley is in the northern part of Saratoga County and is west of the city of Glens Falls.

The town was formed from parts of the Towns of Greenfield and Northumberland in 1801. The Town of Corinth was taken from Hadley in 1818, and the Town of Day was removed in 1819, bringing the Town of Hadley to its current dimensions.

The town of Hadley is within the Adirondack Park. The north and east town lines border of Warren County. A small part of the eastern end of the Great Sacandaga Lake (formerly the "Sacandaga Reservoir") is by the west town line and the Sacandaga River divides the town laterally and enters the Hudson River by the east town line.

• Bell Brook Pond -- A small artificial lake by the west town line.
• Hadley -- The hamlet of Hadley is near the east town line and the mouth of the Sacandaga River at the junction of County Roads 1 and 4.
• Lynnwood -- A hamlet in the west part of the town at the junction of County Roads 7 and 8.
• Mount Anthony -- The highest peak in the town in its southeast corner.
• Rockwell Falls -- A waterfall by Hadley village.
• Stewart Bridge Reservoir -- A reservoir on the Sacandaga River.
• Stewart's Dam -- An earthen dam on the Sacandaga River, creating Stewart Bridge Reservoir.