Kolaigaon is a village in Dotoma tehsil in district of Kokrajhar, Assam, India. As per the data provided by Census of India in 2011, total population of Kolaigaon was 270 which includes 138 males and 132 females. Kolaigaon covers 164.85 ha area. Pincode of Kolaigaon is N/A.