Sorbo married actress Sam Jenkins on January 5, 1998. Their first child, son Braedon Cooper Sorbo (7lb. 8oz), was born on August 22, 2001. Second child, son Shane Haaken Sorbo was born on March 31, 2004. His birth weight of 12lbs. 6oz. broke the Nevada hospital's record. The couple's third child, daughter Octavia Flynn Sorbo (8lb. 7oz) was born on October 16, 2005.

Sorbo is the spokesman and chair of A World Fit For Kids! (AWFFK!), a non-profit organization that trains teenagers to become mentors to younger children.

Sorbo stands 6' 3" (191 cm).