Gov. Andrew Cuomo joined the chorus of officials calling for federal money to keep the subways, buses and commuter trains running, as the coronavirus crisis upends the MTA’s finances.

“The revenue is down every day … same with all the other public transit systems in America. It’s going to be a national response,” Cuomo said at a press conference in Albany on Thursday.

“The MTA will continue to run,” he said. “They’re an essential service.”

The $18 billion-per-year regional transit agency says it needs $4 billion in federal aid as the coronavirus causes its fare and toll revenues to plummet.

Subway ridership has dropped more than 60 percent over the course of March, according to data obtained by The Post.

The commuter rails have seen even steeper drops — as much as 90 percent on Metro-North and around 70 percent on Long Island Rail Road.

Fares and tolls account for half of the $18 billion agency’s operating budget.

MTA officials have not announced any plans to reduce service. On Wednesday, the agency borrowed $1 billion to stave off its impending fiscal crisis.

Across the Hudson, New Jersey Transit officials say ridership has collapsed — dropping 88 percent — and that they need $1.3 billion from the feds to keep the lights on.

Cuomo said state and local governments across the country face existential funding questions, with tax revenue likely to drop during the coming economic downturn.

“The economic consequences here … for the MTA, for the state budget, for county budgets, town budgets, village budgets, all the public authorities, is just a big question mark,” the governor said. “They’ve all lost tremendous revenues, and we’re going to have to figure out as a nation how to deal with this.”

John Kaehny of the good government group Reinvent Albany, which monitors MTA governance and finance, said officials are right to keep the MTA open.

“If you let the MTA go under, you’re letting New York City go under,” he said. “You have to get people to their jobs so they can pay taxes so you support services.”