利根川
Katori is located in far northeastern Chiba Prefecture, along the lower reaches of the Tone River. It is about 45 kilometers from the prefectural capital at Chiba and 70 to 80 kilometers from central Tokyo. It is included in the Narita metropolitan area (Narita city) in the urban employment area, and the commuting rate to Narita city is 12.7% (2010 census). It borders Ibaraki prefecture on the opposite bank across the Tone River. The city is in the Kanto Plain, and although there are places along the Tone River that exceed 50 meters, the average elevation of the city is approximately 20 to 40 meters. Parts of the city are located within the borders of the Suigō-Tsukuba Quasi-National Park.