The district is subdivided into eight subdistricts (tambon), which are further subdivided into 111 villages (muban). There are three townships (thesaban tambon). Kamalasai covers parts of the tambon Kamalasai and Lak Mueang; Thanya covers parts of tambon Thanya; and Nong Paen the whole of tambon Nong Paen. There are a further seven tambon administrative organizations (TAO).