Population of Klamath Falls, Oregon as of January 2026. How many people live in Klamath Falls today?

The exact population of Klamath Falls, Oregon as of January 2026 is estimated at 21,813 residents. Please note: this figure is an estimate and may slightly change as people get born and pass away, it also depends on migration to/from Klamath Falls.

Check out more data on population in Oregon:

• Population of Salem
• Population of Gresham
• Population of Tigard
• Population of Oregon City
• Population of Woodburn
• Population of Central Point
• Population of Dallas
• Population of St. Helens
• Population of Gladstone
• Population of Monmouth
• Population of North Bend
• Population of Fairview