Cara McCollum was a presenter on local television news show SNJ Today.
The former Miss New Jersey was in a convertible when it spun off the road and hit a tree, according to local police.
Police added that it hit a further two trees before ending up on an embankment.
They said the 24-year-old wasn”t wearing a seatbelt and appeared to be driving too fast.
McCollum won the 2013 Miss Jersey pageant and graduated from Princeton university last year.
Tributes poured in for the 24-year-old as she was described as “an incredibly giving human being”.
McCollum’s boyfriend Keith Jones took to Facebook to describe his pain.
He said: “Words fall short of describing the pain, but I”m eternally grateful and blessed for the time I spent with Cara.
“Her enormous heart enriched my life and changed me forever.”
Former Assemblywoman Caroline Casagrande added: “She clearly was someone who just gave back to the community and saw that as part of her duty.
“It was unusual to see someone with as many gifts as she had and have that big of a heart.”
The incident, which is being probed by police, took place on Route 55 in Pittsgrove Township.