Herndon High School (Herndon, VA): Complete School Guide Quick answer: Herndon High School is a Fairfax County public high school at 700 Bennett Street in Herndon, VA 20170. The school's history page calls it the oldest continuously operating high school in Fairfax County. The main office number is 703-810-2200. Last verified October 20, 2026. Herndon High School at a glance School https://23homes.com/herndon-high-school-herndon-va/?utm_source=mastodon&utm_medium=jetpack_social