The Bloomberg administration has agreed to divulge critical details about the 321 NYPD members purported to have cancer since working at Ground Zero, The Post has learned.

The administration tomorrow will provide the age, gender, race, type of cancer and year of diagnosis for the cops and department civilians who served at the World Trade Center site on Sept. 11, 2001, or in the year following.

“This is a victory for every first responder who served following the devastating attacks on 9/11,” said Public Advocate Bill de Blasio, who has been pushing the city to give the information to the Mount Sinai School of Medicine, the center treating and monitoring 9/11 first responders.