English: There are three primary education service area offices (PESA) in Maha Sarakham Province, namely Maha Sarakham PESA 1, Maha Sarakham PESA 2, and Maha Sarakham PESA 3, as illustrated, responsible for primary schools affiliated with the Office of Basic Education Commission of Thailand (OBEC).
Maha Sarakham PESA 1 (blue) covers districts of Mueang Maha Sarakham, Borabue, Kae Dam, and Kantharawichai.
Maha Sarakham PESA 2 (yellow) covers districts of Na Chueak, Na Dun, Phayakkhaphum Phisai, Wapi Pathum, and Yang Si Surat.
Maha Sarakham PESA 3 (green) covers districts of Chiang Yuen, Chuen Chom, Kosum Phisai, and Kut Rang.