Leh Sumnam is a village in Lahul tehsil in district of Lahul and Spiti, Himachal Pradesh, India. As per the data provided by Census of India in 2011, total population of Leh Sumnam was 22 which includes 11 males and 11 females. Leh Sumnam covers 23 ha area. Pincode of Leh Sumnam is 175135.