Coeymans is a town in Albany County, New York, United States. The population was 7,418 at the 2010 census. The town is named after an early settler, who was the patent-holder for the area. The town is in the southeast part of the county, south of Albany, New York.The Powell & Minnock Brick Yard, just north of the Hamlet on Rt. 144, was used as the assembly site for a new swing span for the 145th Street Bridge in 2006. The site was chosen because of a lack of space closer to the city.