"It's difficult to put into words just how valuable Jimmy has been for our squad, both on and off the pitch," Wasps rugby director Young said.
"We all know he is a quality fly-half, but his ability to play 10, 12, 13 and even a couple of games at full-back for us this season has really helped the side.
"Jimmy always puts the team before himself and he's always played at a very high standard in every position he's played.
"He's a real club man and a quality player who deserves all the accolades he's got this season. He's also one of the most modest guys you could meet, really hard-working and a real leader around the camp.
"The team is the most important thing to him and he's a role model to the younger guys coming through. We're really pleased for Jimmy and he thoroughly deserves all the awards he's won."
Gopperth's 221 points off the tee secured the ex-Leinster star the Gilbert Golden Boot Award, while he was also honoured for his try in Wasps' 20-15 win at Northampton in September.