The most religious cities are mostly in the south, except for Provo-Orem, Utah (77%). Colorado’s most religious cities were Greeley (36% religious) and Colorado Springs (35% religious).
The national average of the “very religious” was 40 percent. Boulder is at the extreme non-religious end comparatively, whereas Colorado Springs and Greeley are near the mean if slightly less religious. So much for the stereotype of Colorado Springs as Colorado’s home of prayer.