
The central region located in the fertile river valley area. This is an area for farmers to be able to farm and grow crops almost all year round. Famous for nature and many important historic sites and traveling is convenient whether going north or south, such as waterfalls, parks, temples Historical sites or palaces etc.
In the central plains, consisting of all central and lower river plains which consists of the Chao Phraya River and a branch that flows from an elevation by flows into the Gulf of Thailand in the southern part of the region. The terrain of the central plains Is the thickest and broadest sediment plains of the country especially the lower sediment plains. There is a very spacious area but in this area there are still plains and corrugated mountains remaining. In particular it may be a rocky mountain that is strong or has previously been an island assuming of the majority. The central plains in the past used to be below sea level. Later, sea level dropped out with the ground on elevated include the actions of many rivers line from both erosion Erosion and deposition makes. This area become a vast plain and is an important agricultural area of the country.

There are 20 provinces in the central part of Thailand as follow:
- Bangkok
- Kanchanaburi
- Chachoengsao
- Chai Nat
- Nakhon Nayok
- Nakhon Pathom
- Nonthaburi
- Pathum Thani
- Prachuap Khiri Khan
- Ayutthaya
- Ratchaburi
- Lop Buri
- Samut Prakan
- Samut Songkhram
- Samut Sakhon
- Saraburi
- Sing Buri
- Suphan Buri
- Ang Thong
- Phetchaburi