They’re the neighborhoods that never sleep.

Washington Heights and Inwood are the city’s noisiest area — and they have been for more than a decade, with their residents consistently lodging the most 311 noise complaints, data shows.

The frustrated Manhattan denizens say their incessant calls for help have gone unanswered and they’re fed up with the city’s failure to relieve their aching eardrums.

“It’s been like this for years — the whole time I’ve lived here — and no one has done s–t about it,” said Johnathan Moca, a construction worker who has lived in Inwood for the past seven years.

“If there’s all these complaints, you’d think the city would actually try and do something about it,” he said.

The two Upper Manhattan areas were responsible for 24,923 of the 408,647 noise complaints that city 311 operators fielded over the past year, significantly more than other neighborhoods.

And it’s been that way ever since the city’s 311 help line was created in 2003. The two areas have racked up 229,822 complaints over the years, regularly more than other neighborhoods.

The most complained-about property in the racket-wracked zone is 609 W. 191 St., where 488 grievances were lodged in the past year, mostly for banging and loud music.

One longtime tenant said she has simply given up telling her neighbors in the building to keep the noise down.

“One tires of telling [people] to stop,” said the elderly woman, who wouldn’t give her name, as salsa music blasted from an upper floor and strains of hip-hop carried in through a window.

At 213 Nagel Ave., which was the subject of 283 angry 311 calls last year, neighbors said a fourth-floor party pad causes constant headaches in the summer.

“The area is nice. It’s the people that are a problem,” said Gordon Turner, 47, a former school janitor who lives across the street and has made many complaints about the cacophony.

Residents near Inwood’s commercial strip along Dyckman Street said bars are just as bad as the private parties.

“It’s the businesses, too. There’s this place nearby . . . and the music was so f–king loud I couldn’t talk to the person in front of me. I don’t know what’s happening, but it’s this trend that everyone is doing,” seethed Danilo Brito, 24, a lifelong Dyckman Houses resident.

“Fine, play music,’’ Brito said. “But why does it have to be so damn loud? They forget that this is a community with families.”

The NYPD said the 34th Precinct has been working to address noisy businesses along Dyckman Street, focusing on the hot spots with the most complaints and adding eight more officers to midnight patrols.

Additional reporting by Cedar Attanasio