World Rugby believes there is a huge market for the sport in the US and estimates it could generate $US80 billion ($A118b) in economic opportunities in the US over the next 20 years.
Cities including Atlanta, Dallas, Las Vegas and Los Angeles have all expressed interest in playing a part in hosting the international tournament when it comes to North America for the first time.
"Today we were delighted to welcome more than 30 amazing US cities and states who have expressed an interest in helping us create history with Rugby World Cups in 2031 and 2033," World Rugby chief executive Alan Gilpin said in a statement.
"With an estimated 55 million fans in the US, 800,000 registered players and over 3,100 registered clubs, rugby is already very much alive and kicking in the US.
"United by rugby, we will be using the two tournaments to shine a spotlight on the men's and women's game to show the rest of the world what the US has to offer for rugby and how these two tournaments can help grow the game sustainably for the future."
The US won the hosting rights for the 2031 and 2033 tournaments in May 2022 when World Rugby laid out its 11-year hosting plans.
It said the success of the men's World Cup in Japan in 2019 showed the sport can thrive outside its traditional strongholds like England, New Zealand and Australia.
England will host the women's Rugby World Cup 2025, and Australia will host the men's Rugby World Cup 2027 and women's Rugby World Cup 2029.
Rugby sevens will be contested at the upcoming Paris Olympics and at the Los Angeles Games in 2028.
