Lachhumanwa is a village in Harsidhi tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Lachhumanwa was 890 which includes 467 males and 423 females. Lachhumanwa covers 75 ha area. Pincode of Lachhumanwa is N/A.