An old and important community of Northern Thailand, Phrae was founded after Chiang Mai had been established as the capital of the Lanna Thai kingdom. With one of the largest reserves of teak forests in the country, it is located on the banks of the Yom River, 555 kilometres from Bangkok.

Covering an area about 6,538 square kilometres and surrounded on all sides by mountains with level plains in the middle, Phrae is administratively divided into the following districts: Muang, Sung Men, Den Chai, Long, Wang Chin, Song, Rong Kwang and Nong Muang Khai.