The North Wales-based side has gone from the National League to the Championship in just three seasons, under its Hollywood owners Ryan Reynolds and Rob McElhenney.
Wrexham were second in the table and had a run of eight games unbeaten ahead of their match against Charlton Athletic on Saturday, which they won 3-0.
It is the first time any club has been promoted for three consecutive seasons within the top five tiers of English football.
The third oldest association football club in the world, Wrexham AFC was bought by Reynolds and McElhenney in 2020, and has since been the subject of a Disney+ documentary, Welcome To Wrexham.
Reynolds, wearing a Wrexham sweatshirt, was seen smiling and cheering on television after the game, as the fans came onto the pitch to celebrate the victory with the players.
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