American Heartland Founder Gene Bicknell said: "Families will find thrilling rides and heartwarming shows as they discover Great Plains, Bayou Bay, BigTimber Falls, Stony Point Harbor, Liberty Village and Electropolis.
"American Heartland will be a place families can come together to create lasting memories, experience joy, laughter, imagination and wonder.
"There is so much to celebrate about our country: its landscapes, its cultures and most importantly, its people."
Kristy Adams, senior executive vice president of sales and marketing for Mansion Entertainment Group, added that the "scale and quality of the development will be unlike anything else in the region".
There is another big theme park opening in America.
The new Mattel Adventure Park is to open in Glendale in 2024.
Inside the theme park will be rides and attractions based on many of Mattel's famous toys.
This includes a Hot Wheels go kart and two Hot Wheels rollercoasters, a Thomas and Friends-themed ride and Barbie fans can enjoy a ride on a flying theater, before enjoying a pink drink on the rooftop of the Barbie Beach House.
A UK theme park is challenging Disney with huge new waterpark featuring infinity pools, beach and water slides.
And Europe's first standalone Peppa Pig theme park is opening next year, after the success of the Peppa Pig Theme Park in Orlando.