A robbery suspect jumped out a second-story window and escaped from a Coney Island police station house Thursday, authorities said.

Isiah McGill, 36, was in custody at the 60th Precinct on West 8th Street when he made the mad leap for freedom at about 4 p.m., cops said.

His escape triggered a massive police response in the neighborhood, with cops focusing on a nearby building in the Luna Park Houses, sources said.

Residents and visitors couldn’t access the building for hours as cops cleared each floor while searching for McGill.

McGill is about 6 feet 1 and 160 pounds, cops said. He was last seen wearing a red sweatshirt with the number 23 and the word “GOAT” emblazoned on the back, cops said.