Allen is a city in Collin County, Texas, and is a northern suburb of Dallas. As of the 2000 census, the city had a total population of 43,554. As of April 2007, the city's population is estimated at 77,465. This is a dramatic increase in population and shows just how fast the area is growing. The Allen Independent School District has 13 elementary schools, 3 middle schools, 1 freshman center, 1 alternate school, and 1 high school. Allen hosts a campus of the Collin County Community College District, which is located inside Allen High School.

The Allen Eagle Escadrille, Allen High School's marching band, performed in the 2006 Tournament of Roses Parade and Bandfest in Pasadena, California. The Escadrille has 650 members, including the band, drill team, and color guard. The Escadrille is the largest high school band in the world. It was also a special participant in the 1994 St. Patrick's Day Parade in Dublin, Ireland, 1995 and 1999 Texas Gubernatorial Parades, and 1997 Macy's Thanksgiving Day Parade in New York City.