Society, Religion, Harmony and Politic

Social issues: is there any correlation between number of temples or mosques and number of population? for example look at Selangor state in Malaysia where high number of Muslim population have less number of mosque compared to Hindus and Buddhist and their temples.  This definitely involve a lot of issues such as territorial, racial, space, education, politic, understanding, environment, nature and future societies. Need some studies and analysis immediately.