He was advanced to Lieutenant General on the retired list in June 1948. Campbell's decorations included two awards of the Distinguished Service Medal. He wrote "The Industry-Ordnance Team" in 1946 recounting the Allied effort to produce and deliver weapons, vehicles, and munitions for World War II. After his military retirement, Campbell was involved with several civilian businesses, including appointment as Executive Vice President of the International Harvester company in Chicago, Illinois and serving on the boards of directors of the Curtiss-Wright Corporation and American Steel Foundries. He was also Chairman of the Board of Trustees of the Automotive Safety Foundation. General Campbell died in Annapolis, Maryland on November 17, 1976. He was buried in Section 02, Lot 0336 of the United States Naval Academy Cemetery in Annapolis, Maryland. In 1972 Campbell was inducted into the Ordnance Corps Hall of Fame. The U.S. Army Ordnance Corps Association's Levin Hicks Campbell Jr. Distinguished Award of Merit is named for him.