Calhoun has been a member of the Sierra Vista City Council since 2010. She spent 18 years as a nurse and school counselor before retiring in 2005. She also serves as a Board of Advisor for the Arizona Community Foundation of Cochise and is Board President for the National Alliance on Mental Illness– Southeast AZ Affiliate. She is also a member of the Community Substance Abuse Prevention Coalition, San Pedro Kiwanis, Greater Huachuca Area NAACP, and a past member of the American Counseling Association and the School Counseling Association. Calhoun holds a bachelor’s degree in nursing from the University of Texas and a master’s degree in counseling from the University of Phoenix.