paragraph_text: John Swett High School is located in Crockett, California, United States. It serves the communities of Crockett, Port Costa, Rodeo, and the Foxboro area of Hercules. It is named after John Swett, former California Superintendent of Public Instruction, elected in 1863. John Swett High School was established in 1927. The school remains in its original building complex, which was extensively renovated five years after original construction for seismic retrofitting at a cost of two-thirds of the original cost of the complex. John Swett High School is part of the John Swett Unified School District.

paragraph_text: Booker High School is a high school located in Sarasota, Florida. It is located in north Sarasota and is part of the school district of Sarasota County. The athletic teams are known as the Tornadoes.

paragraph_text: Piner High School (PHS) is a Public high school in Santa Rosa, California, United States. It is part of the Santa Rosa High School District, which is itself part of Santa Rosa City Schools.

paragraph_text: Kress High School is a public high school located in Kress, Texas (USA) and classified as a 1A school by the UIL. It is part of the Kress Independent School District located in southern Swisher County. In 2013, the school was rated "Met Standard" by the Texas Education Agency.

paragraph_text: La Habra High School is a public co-educational high school located in the Orange County, California city of La Habra. Located between the Coyote Hills to the south and Puente Hills to the north, LHHS opened in 1954 and graduated its first class in 1956. It is a California Distinguished High School and has been nominated as a National Blue Ribbon School. The school is a member of the Fullerton Joint Union High School District. LHHS absorbed a majority of the students from nearby Lowell High School when it closed in June 1980.

paragraph_text: Shafter High School is a public high school in Shafter, California, United States, a city north of Bakersfield, California and south of Fresno, California.

paragraph_text: Hedley High School or Hedley School is a public high school located in Hedley, Texas (USA) and classified as a 1A school by the UIL. It is part of the Hedley Independent School District located in southeast Donley County. In 2013, the school was rated "Met Standard" by the Texas Education Agency.

paragraph_text: Santa Rosa is a city in and the county seat of Sonoma County, California, United States. Its estimated 2014 population was 174,170. Santa Rosa is the largest city in California's Redwood Empire, Wine Country and the North Bay; the fifth most populous city in the San Francisco Bay Area after San Jose, San Francisco, Oakland, and Fremont; and the 28th most populous city in California.

paragraph_text: Carlmont High School is a public high school in Belmont, California, United States serving grades 9–12 as part of the Sequoia Union High School District. Carlmont is a California Distinguished School.

paragraph_text: Rancho Dominguez Preparatory School (RDPS) is a public middle and high school in Long Beach, California in the Los Angeles metropolitan area, California, United States. It is a part of the Los Angeles Unified School District. It was previously named South Region High School #4.

paragraph_text: Rosemont High School is a public high school located in Sacramento, California, USA. Designed by DLR Group, its completed buildings opened in 2003. Rosemont H.S. is part of the Sacramento City Unified School District.

paragraph_text: Royal Sunset High School is a continuation high school in Hayward, California, United States, and is part of the San Lorenzo Unified School District.

paragraph_text: Trinity High School (THS) is a high school located in Weaverville, California, in Trinity County. The student population is 400, and the grades are 9-12.

paragraph_text: Santa Maria High School (SMHS) is a public comprehensive high school in Santa Maria, California, United States. Located in the heart of the city, Santa Maria High School is the oldest school in the Santa Maria Valley and is part of the oldest high school district in California. The Santa Maria Joint Union High School District was founded on June 6, 1893.

paragraph_text: Jean Ribault High School is a public high school located in North Jacksonville, Florida. It is part of Duval County Public Schools.

paragraph_text: San Gabriel Mission High School, the "School with a Mission," is an all-girls Catholic College Preparatory high school located on the grounds of the fourth mission of California, which was founded in 1771 by Franciscan priests and often used by Junipero Serra as his headquarters. It is located in the Roman Catholic Archdiocese of Los Angeles. Their Mission statement is:

paragraph_text: Bonita High School is a high school located in the city of La Verne, California in the foothills of the San Gabriel Mountains. Opened in 1903, it was the first high school in the Bonita Unified School District. It moved to its current campus in 1959. The majority of its students come from Ramona Middle School, which is also located in La Verne. The Bearcat athletic teams compete in the Palomares League of the CIF Southern Section.

paragraph_text: Monterey Trail High School (MTHS or MT) is a 9th-12th grade college preparatory high school located in Elk Grove, California. The school was established in the first decade of the 21st century as part of the Elk Grove Unified School District.

paragraph_text: Westerly High School is a public high school located in Westerly, Rhode Island, United States. The school is part of Westerly Public Schools.

paragraph_text: Charlotte High School is a public high school located in Charlotte, Texas (USA) and classified as a 2A school by the UIL. It is part of the Charlotte Independent School District located in central Atascosa County. In 2015, the school was rated "Met Standard" by the Texas Education Agency.

Question: In what county is the city where Piner High School is located?
Answer: Sonoma County