In the U.S., 5-10% of adults currently experience symptoms of depression, and up 25% do during their lifetime, making it one of the most common conditions treated by primary care physicians.
At any given time, around 15% of American adults are taking antidepressant meds.
Studies of all types of religious groups find no evidence these people’s rates of depression differ from non-religious people. So, in a typical congregation of 200 adults, 50 will experience depression at some point, and at least 30 are currently taking antidepressants. (Christianity Today 3/09)