Lao Duar is a village in Dalgaon tehsil in district of Darrang, Assam, India. As per the data provided by Census of India in 2011, total population of Lao Duar was 1,013 which includes 512 males and 501 females. Lao Duar covers 44.9 ha area. Pincode of Lao Duar is N/A.