King was born on November 9, 1960. After graduating from Carrizo Springs High School he attended Southwest Texas Junior College, Sul Ross State University and Texas A&M University, where he earned a Bachelor of Science in Agricultural Engineering. King is the Owner of Beltone Hearing Aid Center, which currently provides hearing healthcare to 16 Southwest Texas counties. He began working there in 1983 and purchased the company in 1987. He has served as a member of the First United Methodist Church Board of Trustees, President of the Kiwanis Club, and President of the Texas Hearing Aid Association