Plano Independent School District is a public school district in southwestern Collin County, Texas, with its headquarters in Plano. Plano ISD serves about 100sqmi of land, with 66sqmi of it within the City of Plano. The district also takes students from northern portions of Dallas and Richardson, and portions of Allen, Carrollton, Garland, Lucas, Murphy, Parker, and Wylie.Led by Superintendent of Schools Dr. Brian T. Binggeli, PISD serves over 55,000 students and employs approximately 6,400 faculty members spread across 65 schools and 2 special and 4 early education centers. The district is known for its high academic standards. PISD has a 2012–13 operating budget of 434.5 million U.S. dollars. This size of the budget is due to the high property values in the city of Plano, though a large amount of the budget is redistributed to less affluent districts.In 2010, the school district was rated "recognized" by the Texas Education Agency.