KCSM is a radio station in San Mateo, California, broadcasting locally on 91.1 MHz. The station broadcasts jazz music, 24 hours a day, commercial-free. The radio station is not-for-profit, and listener-supported.
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San Mateo is a city in San Mateo County, California, about 20 miles south of San Francisco and 31 miles northwest of San Jose. San Mateo had an estimated 2019 population of 104,430. It has a Mediterranean climate, and is known for its rich history.
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California, a western U.S. state, stretches from the Mexican border along the Pacific for nearly 900 miles. Its terrain includes cliff-lined beaches, redwood forest, the Sierra Nevada Mountains, Central Valley farmland and the Mojave Desert. The city of Los Angeles is the seat of the Hollywood entertainment industry. Hilly San Francisco is known for the Golden Gate Bridge, Alcatraz Island and cable cars.

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The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation?s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.

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