Kamlapatpatti is a village in Harlakhi tehsil in district of Madhubani, Bihar, India. As per the data provided by Census of India in 2011, total population of Kamlapatpatti was 4,564 which includes 2,310 males and 2,254 females. Kamlapatpatti covers 187 ha area. Pincode of Kamlapatpatti is 847240.