About Allen
Allen is a city in Collin County in the U.S. state of Texas, and a northern suburb of Dallas. According to the 2020 U.S. census its population was 108,627, up from 84,246 in 2010. Allen is located approximately twenty miles north of downtown Dallas and is a part of the Dallas–Fort Worth metropolitan area.
Elevation: 659′ —Area: 26.49 mi²
Allen Market Report
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