Chachoengsao or Paet Rio is located on the east of
Derived from Khmer, the name Chachoengsao means deep canal, while the name of Paet Rio (Paet means eight and Rio means stripes) has been believed to have come from the way dried fish (which are abundant in the area) were being pierced into eight stripes.
The history of Chachoengsao dated back since the Ayutthaya Period during the reign of King Phra Borom Tri Lokkanat. Most people live along the banks of
Chachoengsao is 80 kilometers from
In general, the areas are plains with forests along the sea coast. In the east, in Amphoe Sanam Chai Khet, the areas contain highlands and mountains, with the attitude of 300 meters above sea level.