Rongmirdon I 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 Rongmirdon I was 315 which includes 174 males and 141 females. Rongmirdon I covers 5 ha area. Pincode of Rongmirdon I is 782460.