According to the United States Census Bureau, the city has a total area of 20.66 square miles (53.51 km²), of which 19.81 square miles (51.31 km²) is land and 0.85 square miles (2.20 km²) is water.
The elevation is 4,094 feet (1,248 m).

Klamath Falls has a high desert landscape.
The older part of the city is located above natural geothermal springs.
These have been used for the heating of homes and streets, primarily in the downtown area.
According to the United States Census Bureau, the city has a total area of 20.66 square miles (53.51 km²), of which 19.81 square miles (51.31 km²) is land and 0.85 square miles (2.20 km²) is water. The elevation is 4,094 feet (1,248 m).
Klamath Falls has a high desert landscape. The older part of the city is located above natural geothermal springs. These have been used for the heating of homes and streets, primarily in the downtown area.
Klamath Falls, Oregon