Marion, Oregon Demographics & Population 2026

A note before these figures: with a population of 154, Marion'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

Marion is a small community located in Oregon, within Marion County. The total population is 154. It ranks as the 376th most populous out of 420 Census-designated places in Oregon.

Age Demographics

The median age in Marion is 39.8 years. This is 1% lower than the state median of 40.4 years. Only 10.4% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Marion is $63,859. This is 23% lower than the state median of $83,011. It is also 21% lower than the national median of $80,734. The ACS records no residents below the poverty line in Marion. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Marion, which reflects the size of the sample rather than a labor market without joblessness. 41.6% of occupied housing units are owner-occupied. This homeownership rate is 34% lower than the state average of 63.3%.

Race & Ethnicity

Every resident counted in Marion was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

0.0% 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. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Marion, 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.