English: There are two primary education service area offices (PESA) in Rayong Province, namely Rayong PESA 1 and Rayong PESA 2, as illustrated, responsible for primary schools affiliated with the Office of Basic Education Commission of Thailand (OBEC).
Rayong PESA 1 (blue) covers districts of Mueang Rayong, Ban Chang, Ban Khai, Nikhom Phatthana, and Pluak Daeng.
Rayong PESA 2 (yellow) covers districts of Khao Chamao, Klaeng, and Wang Chan.