 Kumbakonam has a total of 45 slums with a population of 49,117.As per the religious census of 2011, Kumbakonam had 86.07% Hindus, 9.57% Muslims, 3.99% Christians, 0.% Sikhs, 0.% Buddhists, 0.23% Jains, 0.13% following other religions and 0.% following no religion or did not indicate any religious preference.The Kumbakonam municipality was officially constituted in the year 1866.