Allen is a northern suburb of Dallas, a city in Collin County, Texas, United States. The city has an estimated population of over 84,00 people. Allen is located about 20 miles north of downtown Dallas, and is part of the metropolitan area of Dallas-Fort Worth. Allen the town also has a conference center of 79,000 square feet. The city has three large shopping centers and complexes: Allen Premium Outlets, Watters Creek, and The Village at Allen.