Robert Putnam said this quote
“ Nearly half of all associational memberships are church-religious context. Religious worshipers and people who say religion is very important to them are much more likely than other persons to visit friends, to entertain at home, to attend club meetings, and to belong to sports groups; professional and academic societies; school service groups; youth groups; service clubs; hobby or garden clubs; literary, art, discussion, and study groups; school fraternities and sororities; farm organization; political clubs; nationality groups; and other miscellaneous groups. ”