Haslong Dumachok is a village in Dambo Rongjeng tehsil in district of East Garo Hills, Meghalaya, India. As per the data provided by Census of India in 2011, total population of Haslong Dumachok was 162 which includes 80 males and 82 females. Haslong Dumachok covers N/A area. Pincode of Haslong Dumachok is 793111.