The total area of jiande city is 23 14. 19 square kilometers, accounting for 2.28% of the area of Zhejiang province, and it is 0/08 kilometers away from Hangzhou Expressway.
The boundary river system in jiande city belongs to Qiantang River basin, including Xin 'an River and its tributaries, Shouchang River, Lanjiang River, Fuchun River and 38 small and medium-sized streams. Mountains and hills account for 88.6% of the city's total area. Sandstone, limestone and shale from Paleozoic to Cenozoic in the northern and western mountainous areas, and hills below 200 meters in the south.