Question:  KOSU has studios on OSU's campus in this city in what county?

Context paragraphs:
Lancaster Mennonite School: Lancaster Mennonite School is a private Christian school with five campuses in Lancaster County, Pennsylvania, United States, and one in Hershey, Dauphin County.  The Lancaster Campus, east of the city of Lancaster, Pennsylvania, serves students in grades six through twelve.  The high school on the Lancaster Campus is known as Lancaster Mennonite High School.  The nearby Locust Grove Campus provides pre-kindergarten through eighth grade.  To the southwest of Lancaster city, the New Danville Campus offers pre-kindergarten through fifth grade.  In northwest Lancaster County, the Kraybill Campus has students in pre-kindergarten through eighth grade.  The Hershey Campus, in Hummelstown, offers kindergarten through high school.  Altogether, the school had a total enrollment of approximately 1,462 students at the end of the 2016-17 school year.

Jefferson State Community College: Jefferson State Community College, more often known as 'Jeff State', is a two-year college in the Alabama Community College System.  The current campus locations are the Jefferson Campus in eastern Jefferson County, the Shelby-Hoover Campus in northern Shelby County, the St. Clair-Pell City Campus in Pell City, and the Chilton-Clanton Campus in Clanton.

WOSU-TV: WOSU-TV, virtual channel 34 (UHF digital channel 38), is a Public Broadcasting Service (PBS) member television station licensed to Columbus, Ohio, United States.  Owned by The Ohio State University as part of WOSU Public Media, the station maintains studios on Olentangy River Road on the OSU campus, and its transmitter is located on Highland Lakes Avenue in Westerville, Ohio.

KOSU: KOSU (91.7 FM) is a public radio station operated by Oklahoma State University, with studios on OSU's campus in Stillwater, Oklahoma and in the Film Row district in Oklahoma City, Oklahoma.  The station broadcasts a mix of National Public Radio news, talk radio and adult album alternative (AAA) music format.

DXYK: DXYK 99.7 (Campus Radio Butuan) is a music FM radio station owned by GMA Network Inc. in the Philippines with its subsidiary Radio GMA Network, Inc. or simply RGMA.  Since it was inactive in 2007 (along with Campus Radio 97.5 Tacloban and Campus Radio 97.1 Zamboanga), the station’s studios and transmitter are in Butuan City (the city's former location is San Francisco Street).

Stillwater, Oklahoma: Stillwater is a city in north east Oklahoma at the intersection of US-177 and State Highway 51.  It is the county seat of Payne County, Oklahoma, United States.  As of 2012, the city population was estimated to be 46,560, making it the tenth largest city in Oklahoma.  Stillwater is the principal city of the Stillwater Micropolitan Statistical Area which had a population of 78,399 according to the 2012 census estimate.  Stillwater was part of the first Oklahoma Land Run held April 22, 1889, when the Unassigned Lands were opened for settlement and became the core of the new Oklahoma Territory.  The city charter was adopted on August 24 later that year.  Stillwater is home to the main campus of Oklahoma State University, as well as a branch of Northern Oklahoma College, Meridian Technology Center, and the Oklahoma Department of Career and Technology Education.

Birmingham City University City Centre Campus: Birmingham City University City Centre Campus (known informally as Eastside Campus and tentatively as Creative Campus) "flagship" campus in the centre of Birmingham.  It was constructed next to the existing facilities at Millennium Point and is part of the ambitious Eastside project - Birmingham's biggest physical regeneration scheme.  The campus is the new home for media, arts and engineering learning and includes fully operational television studios, a library, performance theatre, lecture theatres and a learning resource centre.

Danforth Campus: The Danforth Campus is the main campus at Washington University in St. Louis.  Formerly known as the Hilltop Campus, it was officially dedicated as the Danforth Campus on September 17, 2006, in honor of William H. Danforth, the 13th Chancellor of the University, the Danforth family and the Danforth Foundation.  Distinguished by its collegiate gothic architecture, the 169 acre campus lies at the western boundary of Forest Park, partially in the City of St. Louis.  Most of the campus (including almost all academic and administrative buildings) is in a small enclave of unincorporated St. Louis County, while all the campus area south of Forsyth Boulevard (mostly student housing) is in suburban Clayton.  Immediately to the north across Forest Park Parkway is University City.

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.

Ohio State University Airport: Ohio State University Airport (IATA: OSU, ICAO: KOSU, FAA LID: OSU) is a public airport six miles (10 km) northwest of downtown Columbus, in Franklin County, Ohio, United States.  It is owned and operated by The Ohio State University in Columbus, not to be confused with Ohio University in Athens, which owns the Ohio University Airport (IATA: ATO, ICAO: KUNI, FAA LID: UNI) .  It is also known as the OSU Don Scott Airport, named after Donald E. Scott, an OSU alumnus who died during his training as a pilot in the United Kingdom during World War II.

Supporting paragraphs: KOSU Stillwater, Oklahoma
Answer: Payne County