History of the province
     History of the province History of Nonthaburi province: Nonthaburi was founded more than 400 years ago. Originally, it was a densely populated village known as "Ban Talad Khwan", which was a fertile land on the banks of the Chao Phraya River and was a famous fruit orchard of Ayutthaya era.

     In 1549 King Maha Chakkraphat of Ayutthaya era raised Ban Talad Khwan to be the city of Nonthaburi. The city of Nonthaburi was originally located in Bang Krasor Sub-district with Hua Mueang temple (at present, it is an abandoned temple that the government has used as the location of Phra Nang Klao Hospital) is the northern area and Tai Mueang temple is the southern area.

     In 1636 King Prasat Thong ordered to dig a shortcut canal under Tai Mueang temple to go through the front of Khema temple. This is because originally the Chao Phraya River flowed around by entering the Om River, flowing through Bang Yai and then crossing into the Bang Kruai Canal next to the lane of temple and came out in front of Khema temple. Therefore, when the shortcut canal is dug, the river current flows to change the path flowing into the newly dug shortcut canal. After a long time, it became the present Chao Phraya River. As for the original Chao Phraya River, it eventually became shallow and became a canal. When King Narai ascended to the throne

     In 1665in 1665, he saw that when the Chao Phraya River changed its path, it was easier for the enemy to approach the city. Then the King ordered to build a fort at the mouth of the Om River and move the city of Nonthaburi to the mouth of the Om River at the same time. The city of Nonthaburi was located at the mouth of the Om River ever since. Until the era of the Rattanakosin period during the reign of King Rama III, some parts of the fort and the city were to be demolished to bring money to build Chalerm Phrakiat temple and some parts were washed away by the river current. At present, only the City Pillar Shrine remains.
Nonthaburi was established as a province on May 9, 1946.

Nonthaburi Province at present
      Nonthaburi Province is located in the central region on the banks of the Chao Phraya River. Nonthaburi Province is 1 of 5 provinces in the metropolitan provinces namely Nonthaburi, Samut Prakan, Nakhon Pathom, Samut Sakhon and Pathum Thani. Nonthaburi Province covers an area of approximately 622.38 square kilometers (compared to the area of all provinces in the central region, Nonthaburi Province is the second smallest after Samut Songkhram Province). The Chao Nonthaburi Province consists of 6 districts including Mueang Nonthaburi District, Pak Kret District, Bang Bua Thong District, Bang Yai District, Bang Kruai District and Sai Noi District. Nonthaburi Province has a local administrative organization consisting of 1 provincial administrative organization, 2 city municipalities, 4 Mueang municipalities, 11 sub-district municipalities and 28 sub-district administrative organizations. Most of the area is lowland. In the past, most of the people had a career in fruit orchards and farming. At present, the area of the province used to be an orchard and bordering Bangkok began to change into a residence for people who migrated from all parts of the country. In addition, some areas of the province in some districts are also supporting the expansion in the industry. There is a lot of land allocation and construction of industrial factories. It could be said that the eastern part of the province, which borders Bangkok, is also part of Bangkok.