Is population growing or shrinking?

Updated annually
It grew by 8,300 between 2024 and 2025. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. Oregon’s 0.19% annual increase was primarily driven by immigration to the state. In the decade between 2015 and 2025, Oregon’s population grew by 6.3%.

+8.26K

population change (2024 to 2025)

+0.19%

percent change in population (2024 to 2025)
Since 2000, Oregon's population increased in 24 of 25 years. The largest increase occurred between 2015 and 2016, when it gained 74,700 residents. The state's largest decline during the 21st century occurred between 2021 and 2022 when it lost 8,700 residents.

Oregon gained 8,300 residents between 2024 and 2025.

Annual population change

A state’s population is influenced by three factors:
  • Natural population change: If births outnumber deaths in a given year, natural population growth is positive. If deaths exceed births, it is negative. Between 2024 to 2025 natural population change was negative in Oregon, with deaths exceeding births by 3,800.
  • Immigration: international migration directly into or out of a state. If more people move in than move out, population change from immigration is positive. If more people move out than move in, it’s negative. Oregon’s population change from immigration was positive, with about 9,600 more people coming from another country to Oregon than leaving.
  • Domestic migration, moving between states: Oregon’s population change from domestic migration was positive, with about 2,200 more people moving to Oregon from other states than leaving.

Between 2024 and 2025, immigration was the primary driver of population growth in Oregon.

Components of population change

Among 36 county equivalents, Washington County had the largest population growth in Oregon, welcoming 6,441 new residents. Curry County lost the most, with a loss of 499 residents. County-level population data is available as of 2024.
Sherman County led Oregon in percent population increase between 2023 and 2024 at 2.5%. Gilliam County ranked last with a 3.1% decline.

Between 2023 and 2024, Sherman County gained 2.5% in population, the largest increase in Oregon.

Population change

Between 2015 and 2025, Oregon’s population has increased by 6.3%. During that same period, the US population grew by 6.2%. Oregon ranks 16 among states in population growth over that decade.

Oregon ranked 16th in population growth between 2015 and 2025.

Percent change in population

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.