Arlington, Oregon Demographics & Population 2026
During the 2020–2024 ACS period, Arlington, Oregon had a total population of 690, the 258th largest city in Oregon, with a median household income of $76,694, which is 8% lower than the state average. The poverty rate is 15.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 7.4% of adults have a bachelor's degree, well below the national average of 35.7%.
Arlington Quick Facts
How Arlington Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 720 | 690 | -4.2% |
| Median household income | $75,625 | $76,694 | +1.4% |
| Median home value | $159,200 | $253,300 | +59.1% |
How Arlington Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 46 | National average: 61
Education
Educational Attainment (Adults 25+)
Arlington Rankings in Oregon
Explore Oregon Rankings
Other Cities in Gilliam County
Cities Similar to Arlington
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Lacomb | 691 | $76,221 | N/A | 2.4% | 3.6% |
| Brooks | 664 | N/A | $350,700 | 16.6% | 8.8% |
| Mosier | 714 | $73,278 | $333,800 | 38.8% | 8.4% |
| Cove | 651 | $82,500 | $328,000 | 34.5% | 12.8% |
| Tumalo | 662 | $85,417 | $719,600 | 28.9% | 4.4% |
A note before these figures: with a population of 690, Arlington's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Arlington is a small community located in Oregon, within Gilliam County. The total population is 690. It ranks as the 258th most populous out of 420 Census-designated places in Oregon.
Age Demographics
The median age in Arlington is 41.3 years. This is 2% higher than the state median of 40.4 years.
Economy, Income & Housing
The median household income in Arlington is $76,694. This is 8% lower than the state median of $83,011. It is also 5% lower than the national median of $80,734. The poverty rate stands at 15.8%. This is 32% higher than the state poverty rate of 11.9%. The unemployment rate is 6.3%. This is 18% higher than the state rate of 5.4%. The median home value is $253,300. Housing costs are 47% lower than the state median of $477,600. The home-value-to-income ratio is 3.3x. 74.1% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 63.3%.
Race & Ethnicity
The largest racial or ethnic group in Arlington is White (non-Hispanic), making up 63.0% of the population. Hispanic or Latino residents account for 22.3%. The Hispanic or Latino population is significantly higher than the state average (22.3% vs 14.7%).
Education
7.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 80% lower than the state rate of 36.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 79.1%.
Data Sources & Methodology
All demographic data for Arlington, Oregon is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Oregon state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 420 Census-designated places in Oregon. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Oregon city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Arlington, Oregon?
Arlington, Oregon has a population of 690 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Arlington, OR?
The median household income in Arlington is $76,694, which is 5% lower than the national median of $80,734.
What is the poverty rate in Arlington, OR?
The poverty rate in Arlington is 15.8%. This means approximately 109 residents live below the federal poverty line.
What is the racial makeup of Arlington, Oregon?
Arlington's population is 63.0% White, 0.0% Black, 22.3% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Arlington, OR?
The median home value in Arlington is $253,300. The home-value-to-income ratio is 3.3x.
How educated is Arlington, Oregon?
7.4% of adults (25+) in Arlington hold a bachelor's degree or higher, and 2.1% hold a graduate or professional degree.