Monument, Oregon Demographics & Population 2026

A note before these figures: with a population of 185, Monument'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

Monument is a small community located in Oregon, within Grant County. The total population is 185. It ranks as the 371st most populous out of 420 Census-designated places in Oregon.

Age Demographics

The median age in Monument is 73.9 years. This is 83% higher than the state median of 40.4 years. Only 13.5% of residents are under 18, indicating fewer families with children. 49.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Monument is $38,419. This is 54% lower than the state median of $83,011. It is also 52% lower than the national median of $80,734. The poverty rate stands at 24.3%. This is 104% higher than the state poverty rate of 11.9%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The survey records no unemployed residents in Monument, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $2,000,000+. Housing costs are 319% higher than the state median of $477,600. The home-value-to-income ratio of 52.1x suggests that housing affordability is a significant concern for many residents. 74.8% 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 Monument is White (non-Hispanic), making up 60.0% of the population. Hispanic or Latino residents account for 40.0%. The Hispanic or Latino population is significantly higher than the state average (40.0% vs 14.7%).

Education

5.4% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 85% 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 93.9%.

Data Sources & Methodology

All demographic data for Monument, 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.