Historically, Phitsanulok has been
a major community since the time of the Khmers
and enjoyed great prosperity during the Sukhothai
and Ayutthaya periods. During 1463-1487 it
was practically another royal capital as King
Borom Trailokanat of Ayutthaya resided permanently
in the province.
Phitsanulok
is administratively divided into the following
districts: Muang, Wang Thong, Phrom Phiram,
Bang Krathum, Bang Rakam, Wat Bot, Nakhon
Thai, Chat Trakan and Noen Maprang.