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is a hamlet in Albany County, New York, United States, in the state's upstate region. It is located along U.S. Route 9 in the town of Colonie, a dense suburb north and west of Albany. The latitude of Latham's center is 42.746N. The longitude is 73.759W.
Latham's terrain is mostly a hilly mix of deciduous and evergreen trees, with some ponds, creeks and swamps, including several protected water courses and New York State Wetlands. Streams east of Old Loudon Road and Route 9 generally drain into the Hudson River; west of Old Loudon and 9, the hamlet's watercourses drain into the Mohawk River.