How many people died on 911?

Answer 1

One figure given is 2,977 fatalities in total.

The figure includes the passengers of the aircraft including Flight 93, those killed at the Pentagon as well as the attacks at the Twin Towers.

The number includes
2606 killed in NYC by the two building collapses and immediately afterward from injury
246 aboard the four planes including 19 hijackers
125 individuals at the Pentagon

Answer 2

A total of 2,996 people were killed in the September 11, 2001 attacks - this includes 2,977 victims and 18 hijackers. There were 246 victims on the four planes, which had no survivors, 2,606 in the World Trade Center and on the streets of New York City, and 125 at the Pentagon.