Question: What is the 2015 population of the county where KRFE was located? 

Context articles: Wahpeton, North Dakota
San Mateo, California
Purcellville, Virginia
Dickinson, North Dakota
Federal Way, Washington
Owensboro, Kentucky
KRFE
San Jose, California
Lubbock, Texas
Rochester, Minnesota

Wahpeton ( ) is a city in Richland County, in southeastern North Dakota, United States.
 It is located along the Bois de Sioux River at its confluence with the Otter Tail River, forming the Red River of the North.
 Wahpeton is the county seat of Richland County.
 The U.S. Census Bureau estimated the city's 2015 population was 7,899.
San Mateo ( ; Spanish for "Saint Matthew") is a city in San Mateo County, California, located in the high-tech enclave of Silicon Valley in the San Francisco Bay Area.
 With a population of 97,207 as of the 2010 census, it is one of the larger suburbs on the San Francisco Peninsula, located between Burlingame to the north, Foster City and San Francisco Bay to the east, Belmont to the south, and Highlands-Baywood Park and Hillsborough to the west.
 The 2015 population was estimated to be 103,536.
 San Mateo was incorporated in 1894.
Purcellville is a town in Loudoun County, Virginia, United States.
 The population was 9,232 according to the United States Census 2015 Population Estimate (as of July 1, 2015).
 Purcellville is the major population center for western Loudoun and the Loudoun Valley.
 Today , many of the older structures remaining in Purcellville reflect the Victorian architecture popular during the early 20th century.
 Patrick Henry College is located in the town.
Dickinson is a city in Stark County, North Dakota, United States.
 It is the county seat of Stark County.
 The population was 17,787 at the 2010 census.
 The U.S. Census Bureau estimated 2015 population is 23,765.
Federal Way is a city in King County, Washington, United States.
 It is a coastal city inside the Seattle metropolitan area.
 Its southwestern boundary is NE Tacoma Puget Sound, to the south is the cities of Milton, then Fife, then Tacoma.
 It is bordered by Des Moines and Kent on the northeast, Auburn as well as the town of Lakeland North and Lakeland South in unincorporated King County on the east, Milton on the south, and Tacoma as well as Fife Heights and Dash Point in unincorporated Pierce County on the southwest.
 The population was 95,171 at the 2015 United States Census.
 Federal Way is currently the 9th largest city in Washington State and the 5th largest in King County, according to the Census Bureau's 2015 population estimate.
Owensboro is a home rule-class city in and the county seat of Daviess County, Kentucky, United States.
 It is the fourth-largest city in the state by population.
 Owensboro is located on U.S. Route 60 about 107 mi southwest of Louisville, and is the principal city of the Owensboro metropolitan area.
 The 2015 population was 59,042.
 The metropolitan population was estimated at 116,506.
KRFE is a radio station licensed to Lubbock, Texas, broadcasting on 580 AM.
 The station presently airs a News/Talk/Sports format after dropping its long-time format of easy listening music & local talk shows on October 24, 2016.
 Local hosts include Wade Wilkes, Jim Stewart, Cliff Wilkes and Jay Leeson.
San Jose ( , Spanish for "Saint Joseph"; ] ), officially the City of San José, is the economic, cultural, and political center of Silicon Valley and the largest city in Northern California.
 With an estimated 2015 population of 1,026,908, it is the third most populous city in California (after Los Angeles and San Diego) and the tenth most populous in United States.
 Located in the center of the Santa Clara Valley, on the southern shore of San Francisco Bay.
 San Jose covers an area of 179.97 mi2 .
 San Jose is the county seat of Santa Clara County, the most affluent county in California and one of the most affluent counties in the United States.
 San Jose is the largest city in both the San Francisco Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 8.7 million people respectively.
is a city in and the county seat of Lubbock County, Texas, United States.
 The city is located in the northwestern part of the state, a region known historically and geographically as the Llano Estacado and ecologically is part of the southern end of the High Plains.
 According to a 2015 Census estimate, Lubbock had a population of 249,042, making it the 83rd-most populous city in the United States of America and the 11th-most populous city in the state of Texas.
 The city is the economic center of the Lubbock metropolitan area, which has a projected 2020 population of 327,424.
Rochester is a city in the U.S. State of Minnesota and is the county seat of Olmsted County.
 Located on the Zumbro River's south fork, the city has a population of 106,769 according to the 2010 United States Census.
 The U.S. Census Bureau estimated that the 2015 population was 112,225.
 It is Minnesota's third-largest city and the largest city located outside of the Minneapolis-St.
 Paul-Bloomington Metropolitan Statistical Area.
 As of 2015, the Rochester metropolitan area has a population of 213,873.
 It is the home of Mayo Clinic and one of IBM's largest facilities.