McDonald retired after the 1968 season with 495 receptions for 8,410 yards and 84 touchdowns, the second highest total of touchdown receptions in NFL history at the time. He also rushed for 22 yards and gained 1,459 yards and a touchdown returning punts and kickoffs on special teams, giving him 9,891 career all-purpose yards. He was inducted into the Pro Football Hall of Fame in 1998.
McDonald also dabbles in art. His portrait of Joe DiMaggio sold at auction for $4,000.