Who is the number one radio host in America?

The number one radio host in America is Rush Limbaugh. He has been the host of The Rush Limbaugh Show, a nationally syndicated talk radio program, since 1988. Limbaugh's show is heard on over 600 radio stations in the United States and has an estimated audience of over 20 million listeners. He is known for his conservative views on politics and culture and is a controversial figure.