It means global football's showpiece event will return to the North American continent for the first time since 1994 when the United States hosted the tournament.
He said the tournament had an opportunity to put football "on a new and sustainable path for generations to come."
It will be the first World Cup to be expanded to 48 teams, posing an enormous logistical challenge for the hosts, one of the issues that is thought to have undermined the Moroccan bid.
The North American bid had been deeply concerned by Trump's threat during the bidding process that nations that did not support it should not expect US support on other issues.
Bid leaders were worried the FIFA vote could essentially become a referendum on Trump.
That prompted Cordeiro to plead ahead of the ballot to make their decision on the merits of the bid, "not geopolitics".
FIFA President Gianni Infantino was believed to have strongly backed North America behind the scenes because the trio of countries involved supported him in 2016 when he took over after the corruption-tainted reign of Sepp Blatter.
- Clear choice -
Delegates had been faced with a clear choice in the 2026 vote.
The joint North American bid boasted modern, established stadiums and well-developed transport links underpinned by Mexican football fervour.
Morocco, on the other hand, promised a "European" World Cup in Africa, playing on its proximity to Europe and an appeal to take the tournament back to the African continent for just the second time.
But compared to North America, Morocco's bid existed largely on paper -- many stadiums and roads would have had to have been built and critics questioned how it would have coped with an expanded tournament.
FIFA inspectors classified the north African nation's stadiums, accommodation and transport as "high risk", awarding it just 2.7 out of five in an evaluation report, with concerns raised over several critical aspects.
They warned "the amount of new infrastructure required for the Morocco 2026 bid to become reality cannot be overstated".
That suggests that North American bid leaders' promises to deliver a record $11 billion profit for the 2026 tournament are feasible.
The decision will be a shot in the arm for football in the US, after the national team failed to qualify for 2018 in a huge setback for the game there.
It will also be celebrated in football-crazy Mexico, which hosted the World Cup in 1970 and in 1986 -- the tournament remembered for Diego Maradona's "Hand of God" goal.
But the result was a bitter blow for Morocco after a fifth failed bid. In 2010 it lost out to South Africa, which became the first African host.
Morocco was quick to congratulate the winner, tweeting "#Maroc2026 congratulates @United2026 on their victory."
The Moroccan bid had enlisted the support of the British communications agency that helped London and Paris land the 2012 and 2024 Olympics.
France, in particular, lobbied behind the scenes for French-speaking Morocco and the bid had the support of most African nations.
That vote prompted an overhaul of the rules. Whereas previously the 24 members of the FIFA Executive Committee used to determine World Cup races, the host is now decided by a vote of individual FIFA member nations.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)