New York businesses, particularly those located near the World Trade Centre twin towers, which were destroyed in the attacks, received 62% of the total compensation, or $23.3bn dollars, according to the Rand Institute for Civil Justice, a research organisation.
Seriously injured people and families of those killed received a total of $8.7bn, or on average $3.1m per person killed or injured.
Injured emergency workers or relatives of those killed were given $1.9bn, or on average $1.1m more per person than what was given to civilians with similar economic loss.
Insurance companies paid 51% of the compensation, while the government distributed 42%. Charitable organisations donated $2.7bn, or seven percent of the total.
Nearly 3 000 people died in al-Qaeda's hijacked airplane attacks in New York, Washington and Pennsylvania.
