The diocese where the Archbishop of Canterbury, the leader of the Church of England, presides saw the biggest drop in average weekly and Sundayworship figures.
Worship services continued as scheduled Saturday and Sunday with Warren's brother-in-law Tom Holladay -- an assistant pastor for the Orange County, California, congregation -- filling in for Warren.
Boston's historic Trinity Church could not host services Sunday because it was within the crime scene, but the congregation was invited to worship at the Temple Israel synagogue instead.