Klamath County (/ˈklæməθ/ KLAM-əth) is a county which is in the U.S. state of Oregon. The county was named after the Klamath. The Klamath were the tribe of Native Americans living in the area when the first European explorers found the region. As of 2020[update], 69,413 people live there.[1] The county seat is at Klamath Falls.