Officials said they made the decision after consulting with government and health officials.
“We wanted to see how quickly some of the phases would come down and it just became clear that July was going to be too soon,” said Gerry Krochak, director of marketing and media relations with Country Thunder Music Festivals.
“Now it’s our job to get ready for 2021 and put on the biggest, best festival we can.”
Among the artists scheduled to perform in 2020 were Luke Combs, Kane Brown, Dan + Shay and Clint Black.
Country Thunder said details on the 2021 lineup will be released on June 12.
“Seeing the enthusiasm of the fans for this lineup this year, we know that next year the appetite is going to be even greater,” Krochak said, adding that artists are eager to get back to playing in Saskatchewan.
Organizers said all ticketing options for 2020 will be honoured for the 2021 event, which takes place July 8 to 11.
Ticket-holders will receive more information on their options on June 12, Country Thunder said.