The district is divided into 11 subdistricts (
tambons), which are further subdivided into 114 villages (
mubans). Phu Wiang is a subdistrict municipality (
thesaban tambon) and covers parts of
tambon Phu Wiang. There are a further 11
tambon administrative organizations (TAO). Missing numbers are
tambons which now form the districts Wiang Kao and Nong Na Kham. ==References==