High Quality Content by WIKIPEDIA articles! Klamath Falls is a city in Klamath County, Oregon, United States. Originally called Linkville when George Nurse founded the town in 1867, after the Link River on whose falls this city sits; the name was changed to Klamath Falls in 1892. The population was 19,462 at the 2000 census, with an estimated population of 20,720 in 2006. It is the county seat of Klamath County.