Question: What county is Londonderry High School located in?

Context paragraphs:
Londonderry High School: Londonderry High School is a public secondary school serving grades 9 through 12 in the town of Londonderry, New Hampshire.  The school, located on Mammoth Road (New Hampshire Route 128), is on a 135 acre parcel of land in the center of town.  The main building is 232250 sqft .  and the separate gymnasium takes up an additional 52000 sqft .  The current capacity is 2100 students; 1827 are enrolled.

Wethersfield High School (Illinois): Wethersfield High School, also known as Kewanee (Wethersfield) High School, is a public four-year high school located at 439 Willard St. in Kewanee, Illinois, a city in Kewanee and Wethersfield Townships of Henry County, Illinois, in the Midwestern United States.  Wetherfield High School is part of Wethersfield Community Unit School District 230, which also includes Wethersfield Junior High School, and Wethersfield Elementary School.  The school is combined with the Wethersfield Junior High School to form Wethersfield Junior-Senior High School.  Furthermore, Wethersfield Junior-Senior High School is co-located with Wethersfield Elementary School.  Because all students attend the same academic center the school prides itself in getting to know the students over their 13 years of attendance.  However, academics, athletics, and activities remain mostly separate and inline with comparable elementary, middle, and high school curriculum.  The campus is 40 miles northeast of Galesburg, Illinois, 44 miles southeast of Moline, Illinois, and serves a mixed village and rural residential community.  The school is one of two high schools in the city of Kewanee, the other being Kewanee High School.  The school is within the Davenport-Moline-Rock Island, IA-IL metropolitan statistical area.

Jefferson High School (Delphos, Ohio): Delphos Jefferson High School is a public high school located in Allen County, Ohio for reporting purposes only.  Jefferson High School is physically located in Van Wert County, Ohio.  It also serves parts of Van Wert County, Ohio.  Delphos City Schools has only one building (Franklin Elementary) located in Allen County, Ohio, and two (Jefferson Middle School and Jefferson High School) located in Van Wert County, Ohio.  Another building is used for grades 1-5, Landeck Elementary school located in Landeck Ohio.  Landeck is located a few miles outside of Delphos.  This building is owned by the Catholic Church located in Landeck.

Londonderry, New Hampshire: Londonderry is a town in western Rockingham County, New Hampshire, United States.  The town is bordered on the north by the city of Manchester and on the east by the town of Derry.  The population was 24,129 at the 2010 census.  Londonderry is known for its apple orchards and is home to the headquarters of Stonyfield Farm and partial home to Manchester-Boston Regional Airport.

Halifax County High School: Halifax County High School is a public high school located in South Boston, Virginia, United States.  It is located less than 2 mi from Halifax County Middle School.  Having 1,793 students currently enrolled in the 2012–13 school year, there are 118 faculty members with a 15.1 student/teacher ratio.  At Halifax County High, students have the opportunity to take Advanced Placement course work and testing.  Halifax county high school is equipped with two football fields, one soccer field, one field for baseball, and a basketball arena.  Halifax County high school currently runs on the semester system.  The student body makeup is 49 percent male and 51 percent female, and the total minority enrollment is 51 percent.  Halifax County High is the only high school in the Halifax County Public Schools.  Halifax County High School has an 82.2 percent on-time graduation rate and a 2.1 percent drop out rate.

United Senior High School (Illinois): United High School or UHS, is a public four-year high school located at 1905 100th Street near Monmouth, Illinois, a city of Warren County, Illinois, in the Midwestern United States.  UHS is part of United Community Unit School District 304, which also includes United Junior High School, United North Elementary School, and United West Elementary School.  Despite the Alexis United misnomer sometimes used to describe the high school, the campus is actually located 2 miles east of Monmouth, IL, though the district's north campus and one of the elementary schools is located in Alexis, Illinois.  The misnomer is due to the district office previouly being located in Alexis, Illinois.  It has since been moved to the high school campus.  The school serves a mixed city fringe, village, and rural residential community on the outskirts of the city of Monmouth, in the villages of Alexis, Kirkwood, Little York, North Henderson, and the unincorporated communities of Cameron and Gerlaw.  Much of the school district is within the Galesburg micropolitan statistical area.  United High School was formed by the consolidation of Alexis High School and Monmouth Warren High School in 2004.  In 2007 Monmouth Yorkwood High School deactivated and was annexed into United High School.

Palmyra Area High School: Palmyra Area Senior High School (typically referred to as Palmyra High School or PHS) is a midsized public high school located in Palmyra, Pennsylvania, in the United States.  It is part of the Palmyra Area School District.  The school is located at 1125 Park Drive in North Londonderry Township serves students from the western part of Lebanon County, Pennsylvania and includes: Palmyra, North Londonderry Township, South Londonderry Township, the villages of Campbelltown, Lawn and Mount Gretna.  The school was founded in 1962.

Ridge Community High School: Ridge Community High School or RCHS is a public high school located on the Davenport, Florida and Haines City, Florida Line.  RCHS was established in 2005 in Polk County.  It currently serves 2,600 students and has 106 teachers on campus.  Ridge Community High School is one of many schools with a separate 9th Grade campus with its own front office.  The main campus holds students in 10th, 11th, and 12th grade with some exceptions.  Ridge Community High School sits on 76 acre of land.  Ridge Community High School is zoned for Davenport and Haines City.  Ridge Community High School's rivals include Haines City High School, Lake Wales High School and others in Polk County.  The principal of RCHS is currently Russell Donnelly who replaced Sherry Wells, the acting principal between the school's opening in 2005 and 2015 and has a few assistant principals.  Ridge Community High School is part of the Polk County School Board.  RCHS's mascot is the Bolt, and the school motto is Once a Bolt, always a Bolt.

Herndon High School (Kansas): Herndon High School is a former high school located in Herndon, Kansas, USA, which served students in grades 9-12.  Herndon High School was the only high school within the city limits of Herndon, Kansas.  The school colors were blue and yellow and the school mascot was a Beaver.  The average annual enrollment was approximately 200 students from several communities.  Herndon High School was established in either 1912 or 1915.  A new building was erected in the spring of 1917 because of the growing population of the city.  In 1923, Herndon High School became Herndon Rural High School District #2.  The school was rebuilt in 1949 and classes were held at St. Mary's High School.  Classes resumed at the rebuilt high school in 1950.  This remained until the fall of 2003 when the decision was made to consolidate with Atwood USD #318.  The new district that was formed is now Unified School District #105 and Rawlins County Junior-Senior High School.

Foyle College: Foyle College is a co-educational non-denominational voluntary grammar school in Derry City, County Londonderry, Northern Ireland.  The school's legal name is Foyle and Londonderry College.  In 1976, two local schools, Foyle College and Londonderry High School, merged under the Foyle and Londonderry College Act 1976 to form Foyle and Londonderry College.  In 2011, the Board of Governors re-branded the school as 'Foyle College' and updated the school's crest.  The school is a member of the Independent Schools Council of the United Kingdom and also the Headmasters' and Headmistresses' Conference (HMC).

Supporting paragraphs: Londonderry High School Londonderry, New Hampshire
Answer: Rockingham County