Loudonville, New York

Loudonville, New York
Hamlet and CDP
Loudonville census-designated place (CDP) in 1990
Etymology: For John Campbell, 4th Earl of Loudoun
Loudonville
Loudonville
Coordinates: 42°42′17″N 73°45′17″W / 42.70472°N 73.75472°W / 42.70472; -73.75472
CountryUnited States
StateNew York
RegionCapital District
CountyAlbany
TownColonie
Settled1830
Area
 • Total
5.03 sq mi (13.0 km2)
 • Land4.96 sq mi (12.8 km2)
 • Water0.07 sq mi (0.18 km2)
Elevation
348 ft (106 m)
Population
 (2020)
 • Total
10,296
 • Density2,080/sq mi (801/km2)
Time zoneUTC-5 (EST)
 • Summer (DST)UTC-4 (EDT)
ZIP Codes
12211 (Loudonville)
12205 (Colonie)
12110 (Latham)
Area code518

Loudonville is a hamlet in the town of Colonie, in Albany County, New York, United States. Loudonville was a census-designated place (CDP) in the 1970, 1980, and 1990 US Census. It ceased to be a CDP in the 2000 Census, but regained its status in 2020.