2009-10: Paul de Jersey played for Burnaby in his first full season in the BCHL after playing nine games with the Express in 2008-09. In 41 games he scored 2 goals with 2 assists and had 21 penalty minutes. Burnaby finished last in the Coastal Conference and did not make the playoffs.
2010-11: De Jersey opened his second season with the Express, re-located to Coquitlam, before a mid-season trade to the Salmon Arm Silverbacks. In ten games with the Express he scored 1 goal with 1 assist and had 4 penalty minutes. In 33 games for Salmon Arm he had 7 goals with 8 assists. After finishing third in the Interior Conference the Silverbacks reached the conference finals. In 15 playoff games de Jersey scored 4 goals with 3 assists and had 6 penalty minutes.
2011-12: Obtained by Prince George in a pre-season trade, de Jersey won the Brett Hull trophy as the BCHL's leading scorer. Playing primarily with linemates Jujhar Khaira and Michael Colantone, he scored 41 goals with 57 assists and had 58 penalty minutes in 59 games. After winning just 13 games the previous season, Prince George finished third in the Interior Division. The Spruce Kings were swept by second-place Merritt in the first round of the playoffs. De Jersey scored 1 goal with 17 penalty minutes in four playoff games. He committed to playing college hockey at Providence in 2012-13. De Jersey was ranked 98th amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
2012-13: De Jersey skated in 33 of 38 games for Providence as a freshman. He scored 3 goals with 11 assists and was -1 with 8 penalty minutes. The Friars were fifth in Hockey East, finishing above .500 for the first time since 2005-06. Providence reached the Hockey East semifinals after defeating New Hampshire in a first round series and lost 2-1 to eventual Frozen Four runner-up Massachusetts-Lowell.
De Jersey appears to be somewhat of a late bloomer, offensively speaking, with his stickhandling and passing skills being his main strengths. He was able to dominate the BCHL, but it remains to be seen if he can eventually adapt his skill to the pro game. De Jersey possesses the size that NHL teams look for, although de Jersey's style of play doesn't necessarily fit the power forward mold. De Jersey flourished playing on a line with fellow 2012 draft prospect Jujhar Khaira, so it will be interesting to see how de Jersey performs away from Khaira next season at Providence College.