It was established in concert with the construction of the Ang Thong provincial hall, opposite Wat Chai Songkhram, Tambon Ban Hae, on the west bank of the Chao Phraya River.

In 1813 King Rama II ordered Chao Phraya Aphai Phuthon (เจ้าพระยาอภัยภูธร) to build a dam on the Chao Phraya River to manage water levels in Khlong Bang Kaeo for transportation all year.

So the provincial hall was moved opposite the mouth of Khlong Bang Kaeo on the east bank of the Chao Phraya River.

The important water resources are the Chao Phraya and Khlong Bang Kaeo.

Ang Thong itself is a town (thesaban mueang) and covers tambons Talat Luang and Bang Kaeo as well as parts of tambons' Sala Daeng, Ban Hae, Ban It, Pho Sa, and Yansue.