Sanchez's father is a fire captain for the Orange County Fire Authority and a member of the national urban search and rescue team. In college, Nick Sanchez played quarterback for East Los Angeles College and was later a sergeant in the United States Army. His two older brothers both played college football. Nick Jr. attended Yale University, where he played quarterback while Brandon attended DePauw University, where he played on the offensive line. Nick Jr. went on to attend the USC Law School and is a business attorney; Brandon became a mortgage broker.