Provincial administration Sai Yok is divided into seven subdistricts (
tambons), which are further subdivided into 57 administrative villages (
mubans).
Local government Municipalities As of December 2024 there are: three municipal (
thesaban) areas in the district: Sai Yok subdistrict municipality (
thesaban tambon) consists of the whole subdistrict Sai Yok,
Nam Tok Sai Yok Noi subdistrict municipality () covers parts of Tha Sao subdistrict and Wang Pho subdistrict municipality () consists of parts of Lum Sum subdistrict.
Subdistrict administrative organizations The non-municipal areas are administered by six
subdistrict administrative organizations - SAO (
ongkan borihan suan tambon - o bo toh). ==Education==