As per the 2011 Census of India Kumirkola had a total population of 1,731 of which 900 were males and 831 were females. Population below 6 years was 200. The total number of literates in Kumirkola was 1,147.
Culture
The Durga puja during the month of September–October is done by the Banerjee family of Kumirkola. The family stems from the charismatic figure of District Magistrate Pyarimohan Banerjee, who started the Durgapuja in n1830.