Annex, Oregon Demographics & Population 2026
During the 2020–2024 ACS period, Annex, Oregon had a total population of 340, the 314th largest community in Oregon, with a median household income of $67,000, which is 19% lower than the state average. The poverty rate is 12.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 8.9% of adults have a bachelor's degree, well below the national average of 35.7%.
- Unemployment rate of 8.3% is notably above the national average.
Annex Quick Facts
How Annex 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 | 304 | 340 | +11.8% |
| Median household income | $49,792 | $67,000 | +34.6% |
| Median home value | $175,000 | $225,000 | +28.6% |
How Annex 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+)
Annex Rankings in Oregon
Explore Oregon Rankings
Other Cities in Malheur County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Ontario | 11,842 | $46,308 | 21.0% | $236,300 |
| Nyssa | 3,240 | $69,183 | 16.9% | $204,300 |
| Vale | 2,348 | $50,313 | 16.4% | $173,300 |
| Adrian | 299 | $73,000 | 9.4% | $158,100 |
| Harper | 219 | $48,750 | 5.5% | $215,400 |
| Jordan Valley | 180 | $55,893 | 13.3% | $167,200 |
| Brogan | 38 | $119,167 | 0.0% | $181,300 |
| Juntura | 18 | N/A | 33.3% | $341,700 |
Cities Similar to Annex
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Scotts Mills | 337 | $66,806 | $478,800 | 21.1% | 5.0% |
| Cherry Grove | 335 | $59,922 | $398,800 | 14.7% | 16.4% |
| Hebo | 311 | N/A | $241,900 | 0.0% | 79.7% |
| Parkdale | 319 | $71,250 | $376,300 | 37.5% | 0.0% |
| Mount Vernon | 364 | $63,281 | $143,000 | 5.8% | 9.9% |
A note before these figures: with a population of 340, Annex'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
Annex is a small community located in Oregon, within Malheur County. The total population is 340. It ranks as the 314th most populous out of 420 Census-designated places in Oregon.
Age Demographics
The median age in Annex is 27.8 years. This is 31% lower than the state median of 40.4 years.
Economy, Income & Housing
The median household income in Annex is $67,000. This is 19% lower than the state median of $83,011. It is also 17% lower than the national median of $80,734. The poverty rate stands at 12.7%. This is 6% higher than the state poverty rate of 11.9%. The unemployment rate is 8.3%. This is 55% higher than the state rate of 5.4%. The median home value is $225,000. Housing costs are 53% lower than the state median of $477,600. The home-value-to-income ratio is 3.4x. 75.0% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 63.3%.
Race & Ethnicity
The largest racial or ethnic group in Annex is White (non-Hispanic), making up 58.2% of the population. Hispanic or Latino residents account for 35.6%. The Hispanic or Latino population is significantly higher than the state average (35.6% vs 14.7%).
Education
8.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 76% 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 82.7%.
Data Sources & Methodology
All demographic data for Annex, 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 Annex, Oregon?
Annex, Oregon has a population of 340 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Annex, OR?
The median household income in Annex is $67,000, which is 17% lower than the national median of $80,734.
What is the poverty rate in Annex, OR?
The poverty rate in Annex is 12.7%. This means approximately 43 residents live below the federal poverty line.
What is the racial makeup of Annex, Oregon?
Annex's population is 58.2% White, 0.0% Black, 35.6% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Annex, OR?
The median home value in Annex is $225,000. The home-value-to-income ratio is 3.4x.
How educated is Annex, Oregon?
8.9% of adults (25+) in Annex hold a bachelor's degree or higher, and 4.7% hold a graduate or professional degree.