Langdongdai is a village in Mawshynrut tehsil in district of West Khasi Hills, Meghalaya, India. As per the data provided by Census of India in 2011, total population of Langdongdai was 405 which includes 207 males and 198 females. Langdongdai covers N/A area. Pincode of Langdongdai is 793119.