Theology Matters: Comparing the Traits of Growing and Declining Mainline Protestant Church Attendees and Clergy

Using surveys, this study gathered and examined demographic and religious characteristics of attendees and clergy of a group of growing mainline Protestant churches in Canada and compared them to those from declining mainline Protestant churches from the same geographical region and group of denominations. In total, 2255 attendees from 22 churches (13 declining and 9 growing) participated along with their church’s clergy (N = 29). Several notable differences between the characteristics of growing and declining churches were identified. When other factors were controlled for in multivariate analysis, the theological conservatism of both attendees and clergy emerged as important factors in predicting church growth.