Skip to 5:44 for the actual bit on golf courses. He explains that there are over 17,000 golf courses in the USA, each averaging ~150 acres, all combined total a land area of about ~4820 square miles, which is enough land to make up 2 Rhode Islands and a Delaware!
Related: George Carlin - Golf Courses for the Homeless
https://youtube.com/watch?v=5x8nyw7-9QE
Skip to 5:44 for the actual bit on golf courses. He explains that there are over 17,000 golf courses in the USA, each averaging ~150 acres, all combined total a land area of about ~4820 square miles, which is enough land to make up 2 Rhode Islands and a Delaware!