Collin County
Allen, Texas
Pop. ~111,000 | Collin County
Allen City Limits
The official city boundary and the major highways through Allen.
Major roads: State Hwy 5 · State Hwy 121 · State Hwy 399 · US Hwy 75
Boundary & roads: U.S. Census Bureau (TIGER/Line).
Allen grew from a rail stop into a retail and events powerhouse on US-75, known statewide for its high-school football stadium.
About Allen
Allen is located in Collin County in East Texas. Notable landmarks and points of interest include Allen Event Center, Watters Creek, Celebration Park.
111,000
Population
Collin
County
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