A North American World Cup is projected to create $14bn (£10.3bn) in revenue.
US Soccer president Carlos Cordeiro said it would be “the most successful World Cup ever”.
Morocco have also made a bid to host the event and have received significant support in recent weeks.
The North African nation submitted a 193-page document to Fifa in March detailing the reasons why it should host the tournament.
The vote to award the 2026 event takes place on 13 June in Moscow.
US President Donald Trump previously said that it would be “a shame if countries we always support” lobbied against the US bid.
The United States previously hosted the World Cup in 1994 and Mexico has hosted it twice, in 1986 and 1970.