Question: Plainfield High School is part of a school district headquartered where?

full_context: Document 1: South Plainfield High School: South Plainfield High School (or SPHS) is a four-year, co-ed comprehensive community public high school located in South Plainfield in Middlesex County, New Jersey, United States, serving students in ninth through twelfth grades and operating as the sole secondary school in the South Plainfield Public Schools. The school offers numerous clubs, activities, and athletics.
Document 2: Plainfield East High School: Plainfield East High School, or PEHS is a four-year public high school located in Plainfield, Illinois, a southwest suburb of Chicago, Illinois, in the United States. It is part of the Plainfield Community Consolidated School District 202, which also includes three other high schools: Plainfield Central High School, Plainfield South High School, and Plainfield North High School.
Document 3: Plainfield High School (Plainfield, Indiana): Plainfield High School (abbreviated PHS) in Plainfield, Indiana. It is a public high school located within the Plainfield Community School Corporation.
Document 4: South Plainfield Public Schools: The South Plainfield Public Schools is a comprehensive community public school district, for South Plainfield, in Middlesex County, New Jersey, United States, that serves students in pre-kindergarten through twelfth grade.
Document 5: Plainfield North High School: Plainfield North High School, or PNHS, is a four-year public high school located in Plainfield, Illinois, a southwest suburb of Chicago, Illinois, in the United States. Founded in August 2005, it is located on 12005 S. 248th Ave and is part of Plainfield Community Consolidated School District 202. It currently serves students who live in northern Plainfield and parts of Romeoville and Naperville.
Document 6: Plainfield South High School: Plainfield South High School, or PSHS, is a four-year public high school located in Joliet, a southwest suburb of Chicago, Illinois, in the United States. It is part of the Plainfield Community Consolidated School District 202, which also includes three other high schools: Plainfield Central High School, Plainfield North High School and Plainfield East High School.
Document 7: Plainfield Central High School: Plainfield High School - Central Campus, or PHS-CC, is a four-year public high school in Plainfield, Illinois, a southwest suburb of Chicago, Illinois, in the United States. It is part of Plainfield Community Consolidated School District 202, which also includes three other high schools: Plainfield South High School, Plainfield North High School and Plainfield East High School.
Document 8: North Plainfield School District: The North Plainfield School District is a comprehensive community public school district that serves students in pre-kindergarten through twelfth grade from North Plainfield in Somerset County, New Jersey, United States. The district also houses a comprehensive Adult High School and an Adult Community School which offers educational programs for North Plainfield and neighboring community residents.
Document 9: Penn High School: Penn High School is a public high school located just outside Mishawaka, Indiana, United States, near South Bend. It is the only high school in the Penn-Harris-Madison (PHM) School Corporation. The school takes in pupils graduating from the PHM's three middle schools, Schmucker Middle School, Discovery Middle School, and Grissom Middle School, as well as some graduates from local private and religious grade schools and occasionally transfers from neighboring public school districts (primarily South Bend and Mishawaka and other schools). It is the largest high school in the South Bend metropolitan area.
Document 10: Chester Community Charter School: Chester Community Charter School [CCCS], also known as Chester Community Charter, is a not-for-profit public charter school in Chester, Pennsylvania, serving the Chester-Upland School District. The school provides full-day kindergarten through 8th grade. Students apply to attend and the school is open to students from the Delaware County and Philadelphia region. It describes itself as "dedicated to empowering students as learners through the development of a learning community". The school is governed by a six-member board of directors. The administration consists of a CEO, a deputy superintendent, a chief financial officer and a principal at each school building. CCCS operates two campuses; one located in Chester City, known as the East Campus and one located in Chester Township, known as the West Campus. Each campus contains multiple newly constructed school buildings. The school is a federally designated Title I school.
Document 11: Plainfield Community School Corporation: Plainfield Community School Corporation (PCSC) is a school district headquartered in Plainfield, Indiana.
Document 12: CPLC Community Schools: CPLC Community Schools is an operator of two charter high schools in Tucson, Arizona. It has some 300 students and 17 faculty members. It is an affiliate of Chicanos Por La Causa. The current school superintendent of the district is Vicente Fuertes. As of 2007, CPLC Community Schools has approximately 317 students and approximately 17 faculty members. Hiaki High School were founded in association with the Pascua Yaqui Native American tribe.
Document 13: New Castle Community School Corporation: The New Castle Community School Corporation is a public school corporation located in New Castle, Indiana. In addition to New Castle, the district serves all of Henry Township and an adjoining portion of Liberty Township in Henry County, Indiana. The district has one high school, one middle school, and six elementary schools. Additionally, the district administers programs for special education, adult education, and vocational and career.
Document 14: Southwest Prairie Conference: The Southwest Prairie Conference (SPC) is an organization of ten high schools in northern Illinois, representing five communities in that part of the state. These high schools are all members of the Illinois High School Association. The conference began competing during the 2006-2007 academic year. Minooka Community High School, Oswego High School, Oswego East High School, Plainfield Central High School, Plainfield East High School, Plainfield North High School, and Plainfield South High School came from the former Suburban Prairie Conference South division. Romeoville High School came from the former South Inter-Conference Association North division. Joliet Central and Joliet West high schools joined the conference from the Southwest Suburban Conference at the start of the 2016-2017 school year.
Document 15: Plainfield High School (New Jersey): Plainfield High School is a comprehensive community four-year public high school that serves students in ninth through twelfth grades from Plainfield, in Union County, New Jersey, United States. The school is part of the Plainfield Public School District, one of New Jersey's 31 former Abbott districts. Plainfield High School was established in 1857, making it the second-oldest high school in New Jersey. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Secondary Schools since 1928.
ground_truth: Plainfield, Indiana