District School No. 3 (Castleton-on-Hudson, New York)

District School No. 3
U.S. National Register of Historic Places
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Location	1125 S. Schodack Rd., Castleton-on-Hudson, New York
Coordinates	42°30′9″N 73°42′26″W / 42.50250°N 73.70722°W / 42.50250; -73.70722Coordinates: 42°30′9″N 73°42′26″W / 42.50250°N 73.70722°W / 42.50250; -73.70722
Area	0.6 acres (0.24 ha)
Built	1870
Architectural style	Italianate
NRHP Reference #	98001116
Added to NRHP	August 28, 1998

District School No. 3 is a historic one-room school building located at Castleton-on-Hudson in Rensselaer County, New York. It was built in 1870 and is a one story, rectangular massed, brick building in the Italianate style. It remained in use as a school until 1951. Also on the property is a gable roofed garage (1931), a coal / wood shed, and a stone capped well.

It was listed on the National Register of Historic Places in 1998.