data oregon 2024Chart and table of population level and growth rate for the state of Oregon from 1900 to 2025. The population of Oregon in 2025 was 4,272,371 , a 0.44% increase from 2025. The population ofIn 2025, the population of Oregon was 4.27 million, a 0.44% increase year-by-year from 2025. Previously, in 2025, Oregon's population was 4.25 million, an increase of 0.15% compared to a