This community was established in 1872 and named for Ebenezer Allen, a former state attorney general. In 1878, outlaw Sam Bass is said to have committed his first Texas train robbery here. Today, Allen is a community growing rapidly because of the growth of nearby Dallas and its proximity to the Dallas/Fort Worth International Airport.
Local parks offer a variety of recreation opportunities. Bethany Lakes Park features a large stocked fishing pond, disc-golf course, natural amphitheater, picnic tables, trail and playground. Golfers can play six, nine or 18 holes at the municipally owned Chase Oaks Golf Club.