Lalgarh is a village in Chanpatia tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Lalgarh was 9,142 which includes 4,782 males and 4,360 females. Lalgarh covers 637.3 ha area. Pincode of Lalgarh is 845438.