How many people live in Morrow County, OR?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 12,400 people living in Morrow County, OR. That makes Morrow County the 29th-most populous county in Oregon. It is home to 0.29% of people living in the state.
12.4K
population of Morrow County, OR (2024)
0.29%
County share of the Oregon population (2024)
About 12,400 people lived in Morrow County, OR in 2024.
Population estimates, 2000–2024
What are Morrow County, OR’s age demographics?
About 2,200 Morrow County residents are aged 65 and older in 2024. That represents 17.6% of its population. For comparison, the age group represents 19.9% of Oregon’s population and 18% in the US overall.
Another 3,300 Morrow County residents, or 26.5% of the population, were children under 18. For comparison, the age group represents 19.3% of Oregon’s population and 21.6% in the US overall.
A higher share of Morrow County, OR's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Morrow County, OR’s racial and ethnic demographics?
Hispanic residents make up 43.3% of the Morrow County, OR population, higher than the national share of 20%. Morrow County, OR also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (1%) than the US overall (0.72%).
In contrast, Morrow County’s non-Hispanic Black or African American population accounts for 0.65%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 0.93% of the county, compared with 6.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Morrow County, OR has a higher share of a Hispanic population than Oregon as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Morrow County, OR is Boardman with about 4,300 residents in 2024.
Cities and towns in Morrow County, OR ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Boardman | 4,345 |
| 2. | Irrigon | 2,014 |
| 3. | Heppner | 1,119 |
| 4. | Ione | 328 |
| 5. | Lexington | 226 |
| 6. | Balance of Morrow County | 4,328 |
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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.
