Armonk's public education system includes Byram Hills High School, Crittenden Middle School and two elementary schools. Special education classes, a vocational course, advanced placement and honors programs are all part of the community's dedication to educational distinction. The town recreation department offers year-'round activities. Membership in the Ehrman recreation center, which offers two pools and tennis courts, is open to all residents of North Castle. Tennis clubs and golf courses also serve recreational interests.
Residents support six churches and a synagogue, covering a gamut of religious denominations.