Valhalla is a hamlet and census-designated place (CDP) located within the town of Mount Pleasant, in Westchester County, New York, United States. Its population was 3,162 at the 2010 U.S. Census. The name of the community was inspired by a fan of the opera composer Richard Wagner, and the celebrated status of this hamlet comes primarily from its location as the burial places of the remains of numerous well-known people. The name comes from Valhalla, a heavenly abode in Norse mythology
Valhalla is the location of the Mount Pleasant Town Hall as well as the Mount Pleasant Town Pool and Community Center. The main street in Valhalla is Columbus Avenue, which runs the length of the hamlet. Along this road is the Valhalla train station, the Kensico Dam, and Holy Name of Jesus Church, as well as shops and restaurants. The Valhalla ZIP Code (10595) includes portions of the towns of Mount Pleasant, Greenburgh and North Castle. The hamlet is bordered by the North White Plains area of North Castle, the northernmost portion of the town of Greenburgh, and the hamlets of Thornwood and Hawthorne, both within Mount Pleasant. The Valhalla School District, comprising parts of the three towns, is served by the Virginia Road Elementary School, located in the southernmost part of the hamlet in Greenburgh, and the Kensico School and Valhalla Middle and High Schools, all located along Columbus Avenue in Mount Pleasant. Some residents with Valhalla addresses are in the Mount Pleasant Central School District, served by Westlake High School in Thornwood. The Valhalla train station is located right off the Taconic State Parkway, across from the hamlet’s commercial center. The train station is the next major stop of Metro-North Railroad after North White Plains.
The John A. Hartford House was added to the National Register of Historic Places in 1977 as a National Historic Landmark. It serves as administrative offices of SUNY Weschester Community College.