There’s a new homeless shelter in Alphabet City — Tompkins Square Park.

The East Village green space has become an encampment for the surging number of city vagrants, with many sleeping through the day amid dog walkers and moms with strollers.

“I really don’t enjoy the beauty of the park anymore because I’m too scared to walk through it,” said NYU student Christine Gal, 19, who lives nearby. “I would say it has doubled in the last six months.”

Gal added that she has been verbally harassed by “aggressive” bums and now avoids the park at night.

A parks worker called the urban oasis “scary,” saying it’s riddled with bums who have drug problems.

“There are a lot more homeless than there was,” the worker said. “There is a shelter nearby, but many of them don’t want to go there.”

One woman is worried about bringing her 6-year-old daughter to the park.

“Some of them are junkies. They’re standing there almost falling down or sitting there slumped over,” the 39-year-old woman said. “My daughters asks, ‘Mommy, why are the men sleeping?’ And that’s not something you want to explain to your child.”

On Thursday afternoon, a herd of homeless people sprawled across the lawn.

Three men shared a cardboard-box bed for most of the afternoon. One haggard man ventured onto the streets around noon, leaving his makeshift bed behind.

A few feet away, hobos sought shelter under a cluster of trees, snuggling up in sleeping bags.

It was a similarly seedy scene across town at Washington Square Park, where one homeless woman spent the night in the fountain and about a dozen others camped on benches or on the ground.

“I’ve been coming here since the ’70s, and I see more homeless people here now than ever before,” said artist Phillip Solomon, 61. “It’s terrible that people should be living in a park without anywhere to live.”

Park maintenance worker Anthony Drapper, 22, blamed the city for not doing more.

“If they were better taken care of, I don’t think they would be in the park, just lying around.”

Mayor Bill de Blasio admitted Thursday that he is worried about the homeless problem.

“I think it’s a real concern, and I share the concern of my constituents who have said to me they’re worried that there are homeless people on the streets,” he said.

Additional reporting by ­Reuven Fenton and Yoav Gonen