Texas's 3rd congressional district is a United States House of Representatives district in suburban and some rural areas north and northeast of Dallas. It encompasses much of Collin County, namely McKinney and Allen, as well as parts of Plano, Frisco, and Prosper. Additionally, the district includes all but the southern portion of Hunt County. The district is also home to a public four-year university, Texas A&M University-Commerce, as well as most of the Collin College campuses.