Most areas of the province are plains with two river Chao Phraya River flows through the heart of the district, Muang District, Pathum Thani province and district Samock. Make space Pathumthani be divided into 2 parts of the western provinces or on the right side of the Chao Phraya River are. ลาดหลุมแก้ว area in districts with some areas of Muang district, and Samock. The Eastern Province. Or on the left side of the Chao Phraya River, including some areas Muang District Thanyaburi Klong Luang district. หนองเสือ districts and some districts of the district Lumlukka Samock.
Typically, the water level in the Chao Phraya River in the rainy season will increase an average of approximately 50 cm, causing. Flood plain near the Chao Phraya river is wide area and causing flooding in areas of the right side. Chao Phraya River area for the left side of the Chao Phraya River is due to include a Canal Soi many irrigation canals to control the amount of water to make flood-related issues are less.