Before he became part of Tesla, Keith lived in Idabel, Oklahoma with his mother Anita and sister Joey. He attended Idabel High School and eventually moved to Sacramento, California to live with his father. Keith started out singing in the band Troubleshooter with his brother BK, before joining City Kidd (later known as Tesla) in 1983. He now lives with his wife, step-daughter and son in Granite Bay, California.
Jeff Keith supports non profit charities thru his yearly Ride for Reason concerts in the Sacramento, California suburb of Roseville. Proceeds from the concert have gone to local area foster children, Toys for Tots, Big Brothers Big Sisters and Nor Cal Clean and Sober Living. Some of the contributing artists have included Jeff Keith, Paul Holdgate, Julianna "Jules" Pollifrone and Alan Gratzer.