English: There are two primary education service area offices (PESA) in Kalasin Province, namely Kalasin PESA 1, Kalasin PESA 2, and Kalasin PESA 3 as illustrated, responsible for primary schools affiliated with the Office of Basic Education Commission of Thailand (OBEC).
Kalasin PESA 1 (blue) covers districts of Mueang Kalasin, Don Chan, Kamalasai, Rong Kham, Sahatsakhan, and Sam Chai
Kalasin PESA 2 (yellow) covers districts of Huai Mek, Khong Chai, Nong Kungsi, Tha Khantho, and Yang Talat
Kalasin PESA 3 (green) covers districts of Huai Phueng, Kham Muang, Khao Wong, Kuchinarai, Na Khu, Na Mon, and Somdet