 The district history goes back to the small village Ban Nong Phok, which was part of "tambon" Kok Pho, Phon Thong District.It was made a minor district ("king amphoe") on 16 June 1965, then consisting of the two "tambons" Kok Pho and Bueng Ngam.It was upgraded to a full district on 28 June 1973.