Santimai Chakma is a village in Diphu tehsil in district of Karbi Anglong, Assam, India. As per the data provided by Census of India in 2011, total population of Santimai Chakma was 239 which includes 119 males and 120 females. Santimai Chakma covers 105 ha area. Pincode of Santimai Chakma is 782460.