Jonas, 22, and Deleasa, 23, were married at Oheka Castle on Saturday night with nearly 400 friends and family members in attendance, People.com reported.
"We're so happy that we're finally married and we were able to share the special moment with family, friends and loved ones," the happy couple told People magazine.
Celebrity event planner Michael Russo said while heavy snowfall in the New York area put Saturday's event in jeopardy, it ultimately served as a nice addition to the wedding.
"The snow only made it look more like a winter wonderland," Russo said.
Russo told People magazine that Jonas, whose brothers Nick and Joe served as his best men at the wedding, is finally married to the "princess" he met in 2007.
"Kevin has said many times he feels like he met his princess," Russo said. "To see them together you can feel the warmth and the love all around them. They are just perfect for each other."