
Nakhon Sawan, literally Heavenly City, is a town with a population of about 90,000. It is the provincial capital of Nakhon Sawan Province and is located at the confluence of the Ping and Nan rivers in Northern Thailand.
Nakhon Sawan was a city since Dvaravati era. While part of the Sukhothai kingdom, it was called Mueang Phra Bang, the southern frontier city of Sukhothai. Later within the Ayutthaya kingdom it was an important trade center because of its location at the two major rivers from the north. It also was the common meeting point of Burmese troops before moving to attack Ayutthaya. In the reign of King Taksin the Great, Phra Bang became a Siamese military base to prevent further Burmese attacks.
When King Mongkut signed the Bowring Treaty with Britain the glorious time of Nakhon Sawan began, as it became the main rice and teak trading center. However the opening of the Northern railway in 1922, the economic crisis before 1932 revolution, and finally the opening of Dejativongse bridge and Phahonyothin highway in 1950 each decreased the importance of water transportation and thus made Nakhon Sawan less important. When in 1895 King Chulalongkorn established the monthon as part of the thesaphiban administrative reform, Nakhon Sawan became capital city of Monthon Nakhon Sawan.
The 4th Infantry Regiment of the 3rd Area Army is based in Nakhon Sawan. It is in charge of the northwestern border with Burma, from Mae Hong Son in the north to Kanchanaburi in the south.
Nakhon Sawan Province, also known as Pak Nam Pho is where the rivers of Ping, Wang, Yom, and Nan converge and form the Chao Phraya River, the most important waterway of Thailand.
Nakhon Sawan is in the lower northern part of the country between the North and the Central Region. It is regarded as the doorway to the North and it is the hub of transportation in the Lower North.