2009-10: Nolan De Jong played five midget major games for the South Island Royals as a 14-year-old and played for the Saanich Braves Bantam AA team in British Columbia. He had no points and two penalty minutes with the Royals. De Jong was selected by Regina in the seventh round (137th overall) of the 2010 WHL Bantam Draft.
2010-11: DeJong joined the Royals on a full-time basis, skating in 35 regular season games and three playoff contests. He scored 3 goals with 9 assists and had 73 penalty minutes in 38 games. South Island was fifth in the regular season and lost to the Greater Vancouver Canadians in a best-of-three playoff series.
2011-12: DeJong played for the BCHL's Victoria Grizzlies in his hometown – skating in 56 games in his first season. He scored 2 goals with 15 assists and had 20 penalty minutes. The Grizzlies finished last in the Coastal Division; missing the BCHL playoffs.
2012-13: DeJong returned to Victoria for his second BCHL season and committed to playing college hockey at Michigan in 2013-14 in October. He was selected to represent Canada West in the 2012 U19 World Junior A Challenge. De Jong scored 5 goals with 19 assists and had 16 penalty minutes in 51 games for Victoria. The Grizzlies were one of the BCHL's big turnaround stories, winning 33 games and finishing first in the Island Division. De Jong scored 2 goals with 2 assists and had 6 penalty minutes in 10 playoff games as Victoria reached the second round. He skated in four games for Canada West and had no points with 2 penalty minutes. Ranked 111th amongst North American skaters, De Jong was selected by Minnesota in the seventh round (197th overall) of the 2013 NHL Draft.
De Jong is a mobile defender with some offensive ability, but he has a below average frame right now.
De Jong will be a freshman at the University of Michigan in 2013-14. This season will be a good test of whether his above-average skating ability can compensate for his below-average strength.