English: There are five primary education service area offices (PESA) in Ubon Ratchathani Province, as illustrated, responsible for primary schools affiliated with the Office of Basic Education Commission of Thailand (OBEC).
Ubon Ratchathani PESA 1 (blue) covers districts of Mueang Ubon Ratchathani, Don Mot Daeng, Khueang Nai, Lao Suea Kok, and Muang Sam Sip.
Ubon Ratchathani PESA 2 (yellow) covers districts of Khemarat, Kut Khao Pun, Na Tan, Pho Sai, and Trakan Phuet Phon.
Ubon Ratchathani PESA 3 (green) covers districts of Khong Chiam, Phibun Mangsahan, Si Mueang Mai, Sirindhorn, and Tan Sum.
Ubon Ratchathani PESA 4 (red) covers districts of Na Yia, Samrong, Sawang Wirawong, and Warin Chamrap.
Ubon Ratchathani PESA 5 (purple) covers districts of Buntharik, Det Udom, Na Chaluai, Nam Khun, Nam Yuen, and Thung Si Udom.