Amarjan 12 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 Amarjan 12 was 587 which includes 296 males and 291 females. Amarjan 12 covers 30 ha area. Pincode of Amarjan 12 is N/A.