Don Mueang International Airport | Phitsanulok | Mueang Nakhon Pathom District | Amphoe | Mueang | Mueang Nonthaburi District | Mueang Sing | Mueang Nan District | Mueang Buriram District | Khwae Noi River, Phitsanulok | Don Mueang District | amphoe |
Clockwise from the north, the subdistrict is bordered by Wang Nam Khu (of Amphoe Mueang Phitsanulok), Tha Tan, Nakhon Pa Mak, Phai Lom, Ta Fo (of Amphoe Mueang Phichit in Phichit Province), Sanam Khli, Khok Salut and Ban Rai.
Tha Tan is the northernmost subdistrict in Bang Krathum, bordering Wang Nam Khu of Amphoe Mueang Phitsanulok to the northwest, Amphoe Wang Thong to the northeast, Nakhon Pa Mak to the south and Bang Krathum to the southwest.