He had a successful loan period with Ross County last season, where he gained valuable experience.
Campbell expressed his delight at extending his stay with Everton, stating that he has been with the team for seven years.
He is grateful for the new deal, which will see him remain with the team until 2027.
Campbell reflected on his loan period with Ross County, citing the challenges he faced during their relegation battle.
However, he believes that the experience has made him a better player, and he has learned valuable lessons that will help him in his future development.
Going forward, Campbell aims to continue developing as a player, with the ultimate goal of becoming a regular member of the first team.
He is open to the possibility of going out on loan again if it will help him further develop his skills and gain more experience.