About the City of Allen
Allen is an affluent city in Collin County, Texas, a northern suburb of Dallas. As of the 2010 United States Census, the city had a total population of 84,246. The median income for a household in the city in 2007 was $93,392, and the median income for a family was $100,736.
The Allen Independent School District has 17 elementary schools, 3 middle schools, 1 freshman center, 1 Alternative Education Center, and 1 high school (Allen High School). Allen ISD serves almost all of Allen.