Longgari Bagan 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 Longgari Bagan was 455 which includes 222 males and 233 females. Longgari Bagan covers 40 ha area. Pincode of Longgari Bagan is 782480.