New Jersey officials are probing whether rough sex or a drug overdose claimed the life of a young woman who died during a raunchy romp in a car with a man she’d just left a party with at a Hackensack high-rise, a report said.

The woman, 19, was found dead early Saturday in a car at a parking garage alongside the 18-story building, officials said; her name was not immediately released.

Bergen County Prosecutor Mark Musella termed it “a suspicious death.”

An autopsy of the woman, who is from the adjacent town of Maywood, is being performed to determine if she overdosed or died as a result of rough sex, a law-enforcement source told the Hackensack Daily Voice.

Police received a 911 call reporting the death at 2:14 a.m. Saturday, prosecutors said in a statement.

The caller directed police to a detached parking garage at 140 Prospect Ave., a luxury high-rise apartment complex.

The woman had attended a loud, raucous Halloween party on the 14th floor on Friday night, according to a neighbor who asked not to be named.

The party was so loud that the doorman was summoned at one point, the neighbor said.

The woman left the party with a man in his 20, the Daily Voice reported, citing a law-enforcement source. It’s unclear whether the two had just met.

The man told cops that he and the woman had consumed prescription medication, according to the site.

They were having sex in the car when she lost consciousness, the man reportedly told cops.

The woman was pronounced dead at Hackensack University Medical Center, according to the paper. Authorities are grilling the young man, the paper reported.

The death occurred on the roof of the two-story garage, where hours later crime-scene tape stretched across the area where the car had apparently been parked. The car itself had been removed.

“We heard rumors that it was drugs or strangulation, resident Peggy Goulet told The Post.

“It’s a quiet building,” she added. “I’ve lived here for 12 years and nothing like this has ever happened.”

Additional reporting by Laura Italiano