During Justin Welby's almost 12 years as Archbishop of Canterbury, regular attendance at Church of England services has continued to decline, despite multiple evangelistic efforts to re-engage the faithful. In 2012, shortly before his appointment, attendance exceeded one million but had dwindled to just 685,000 by 2023. This decline is part of a broader trend observed in the 2021 census, which revealed that less than half the population of England and Wales now identifies as Christian.