Gilliam County, Oregon Demographics 2026

Population Overview

Gilliam County is located in Oregon with a total population of 2,002. It is the 34th most populous county out of 36 in Oregon.

Age Demographics

The median age in Gilliam County is 50.3 years. This is 25% higher than the state median of 40.1 years. 10.8% 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 Gilliam County is $64,219. This is 20% lower than the state median of $80,426. Compared to the national median of $78,538, household income here is 18% lower. The poverty rate stands at 12.6%. This is 6% higher than the state poverty rate of 11.9%. The unemployment rate is 1.7%. This is 68% lower than the state rate of 5.4%. The median home value is $158,400. Housing costs are 65% lower than the state median of $454,200. With a home-value-to-income ratio of just 2.5x, Gilliam County is one of the most affordable housing markets in the area. 75.6% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Gilliam County is White (non-Hispanic), making up 82.1% of the population. Hispanic or Latino residents account for 8.7%. The Asian population (0.4%) is well below the state average of 4.4%.

Education

20.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% lower than the state rate of 36.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.1%.