The Big Apple is “considering” a plan to house migrants at Rikers Island, sources told The Post Wednesday — as Mayor Eric Adams revealed nearly 50% of the city’s hotel rooms are now occupied by asylum seekers amid the surging crisis.

City officials toured the notorious jail last week as the Adams administration weighs whether to shelter asylum seekers there, according to two people familiar with the potential plan.

Another source added that officials were tossing up Rikers as a “last ditch site” to house migrants as the city struggles with the ongoing influx of asylum seekers flooding in.

Hizzoner on Wednesday wouldn’t confirm the Rikers proposal, insisting instead: “We are looking at everything.”

“As we roll out what we were doing, we will announce. But right now everything, I tell the team every morning at 8:00 a.m., we are looking at everything.”

As part of the city’s plan to cope with the migrant surge, the Adams administration has been housing migrants in the roughly 150 emergency sites — mostly hotels — that they have set up across the five boroughs.

Adams said almost half of the Big Apple’s hotel rooms are now “taken up by asylum seekers.”

“New York City is the hotel capital.. almost 50% of those hotel rooms have been taken up by migrant, aslyum seekers,” the mayor said.

“So instead of money coming from people who are visiting us and spending in our tourism, in our Broadway plays, instead of using those hotels — we’re using those hotels.” 

City Hall has faced intense backlash in recent weeks after officials started busing migrants to hotels in upstate counties — prompting top pols in Rockland and Orange counties to seek restraining orders to ban the Big Apple from doing so.

Meanwhile, furious parents started picketing outside several city-public schools this week after it emerged 20 school gyms were being eyed to hold migrants.

As of Wednesday, several migrants had been dropped off — at least temporarily — at three Brooklyn schools, including PS 17/MS577 in Williamsburg, PS 172 in Sunset Park and PS 188 in Coney Island.

As of May 14, nearly 41,000 migrants were staying at the 150 emergency sites scattered across the Big Apple, according to the latest figures released by City Hall.

More than 65,000 asylum-seekers have filtered through the system since last spring.

About 4,200 migrants arrived in the Big Apple last week and another 15 buses are slated for this weekend.