Guilderland is a town in Albany County, New York. The town of Guilderland is on the central-northwest border of the county. It is west of Albany, the capital of New York.
The town borders Schenectady County, New York, including the towns of Princetown and Rotterdam on the northern and western edges. It also borders the towns of Berne, Colonie and New Scotland and the city of Albany.
Two interstate highways, I-87 and I-90 run through Guilderland, meeting in the city of Albany, north of Crossgates Mall a large mall on the edge of Guilderland. US-20 also runs through the town.
As of the 2000 census, there were 32,688 people, 13,422 households and 8,764 families residing in the town.
Guilderland is served by the Guilderland Central School District. It has one high school, Guilderland High School, one middle school, Farnsworth Middle School, and five elementary schools. Some portions of the town are served by other school districts, including Voorheesville Central School District, based in the town of New Scotland; as well as Schalmont Central School District and Mohonasen Central School District, both of which are based in the town of Rotterdam.
There are several communities located within Guilderland, including Altamont, Guilderland Center and McCormacks Corner.