The government split off some part of Tha Li, Mueang Loei and Dan Sai districts and made them to the minor district (King Amphoe) Phu Ruea on October 15 1968 and made it a subordinate of Dan Sai.1 It was upgraded to a full district on April 1 1974.2
The district is subdivided into 6 communes (tambon), which are further subdivided into 47 villages (muban). Phu Ruea is a township (thesaban tambon) which covers parts of the tambon Nong Bua. There are further 6 Tambon administrative organizations (TAO).