The 31-year-old joined Everton from Sunderland in 2017 for 30 million pounds - a British record for a goalkeeper at the time - and has since made 326 appearances. He has also won all 80 of his England caps while at the club.
Pickford's previous deal ran until 2027. His extension follows new contracts for defenders James Tarkowski and Jarrad Branthwaite as Everton look to secure key players under manager David Moyes.
"It shows the commitment I've made to Everton and the faith the club has shown in me," Pickford said. "It gives me the chance to build a legacy here and help move the club forward."
Pickford, a four-time Everton Player of the Year, said he hopes to emulate club legend Neville Southall, who holds the record for most appearances (751).
"I don't want to be too far behind him - if not in front - when my time comes to an end," he added.
Everton, who have made a solid start to the Premier League season, travel to Manchester City this weekend.
England manager Thomas Tuchel has recalled Jude Bellingham and Phil Foden for next week's World Cup qualifiers against Serbia and Albania, while Bournemouth midfielder Alex Scott earns his first senior call-up.
Brighton head coach Fabian Hurzeler says his players unanimously believe Danny Welbeck deserves a recall to the England squad, as calls grow for the in-form striker to be included in Thomas Tuchel's selection for this month's World Cup qualifiers.
Pep Guardiola has urged England manager Thomas Tuchel to recall Phil Foden after the Manchester City star produced a sparkling performance in their 4-1 Champions League victory over Borussia Dortmund.
Wolves are weighing up former Manchester United boss Erik ten Hag as a candidate to replace Vitor Pereira, who was dismissed following Sunday's 3–0 loss to Fulham.
