In the north tower, American Airlines Flight 11 struck the 93rd through 98th floors and wrecked the stairwells on the 92nd floor. At the crash and above, 1,360 people died; none survived. Below the crash line, 72 died and more than 4,000 survived.

An estimated 1,402 to 1,700 people lost their lives in the North Tower (1 WTC) during the terrorist attacks on September 11, 2001. The North Tower was the first to be struck—hit by American Airlines Flight 11 at 8:46 AM—but the second to collapse. Because the aircraft impacted between the 93rd and 99th floors, all three emergency stairwells were instantly severed, effectively trapping everyone on the floors above the impact zone. While those below the 92nd floor were largely able to evacuate before the collapse at 10:28 AM, virtually no one above the impact site survived. This figure included hundreds of employees from firms like Cantor Fitzgerald and Marsh McLennan, as well as numerous first responders from the FDNY and NYPD who had entered the building to assist in the evacuation. The total death toll for the New York City site, including both towers, the aircraft passengers, and those on the ground, is officially cited as 2,753 people.