The Arlington Historical Society is a 501(c)(3) nonprofit dedicated to collecting, preserving, interpreting, and sharing the history of Arlington County, Virginia. Celebrating more than 70 years of community heritage work, the Society helps residents and visitors explore the people, places, and events that shaped the county. Its historic sites include the Arlington Historical Museum and the Ball-Sellers House, which welcome visitors during scheduled public hours.

The Society offers exhibits at the museum and online, historical stories, videos, maps, neighborhood tours, and resources for exploring local history. Its educational materials include historical milestones, teaching resources, and subject guides, while research services help people investigate the county, their family, neighborhood, property, or other historical questions. Members and readers can also engage through the Arlington Historical Magazine, newsletters, events, and an online bookstore. The Society invites the public to support its work through membership, donations, volunteering, and email updates. Its programs and collections are sustained by membership dues and donations, helping preserve Arlington’s history for future generations.