Lalmonirhat (Bengali: লালমনিরহাট জেলা, Lalmonirhat Jela, also Lalmonirhat Zila) is a district, which at the northern border of Bangladesh. It is a part of the Rangpur Division.  It lies north of Cooch Behar and Jalpaiguri of West Bengal, south of Rangpur, east of Kurigram and Cooch Behar and west of Rangpur and Nilphamari district. The international borderline of Lalmonirhat district is 281.6 km long.