Yamhill County, Oregon Demographics 2026

Population Overview

Yamhill County is located in Oregon with a total population of 108,122. It is the 10th most populous county out of 36 in Oregon.

Age Demographics

The median age in Yamhill County is 39.5 years. This is 1% lower than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Yamhill County is $87,084. This is 8% higher than the state median of $80,426. Compared to the national median of $78,538, household income here is 11% higher. The poverty rate stands at 10.4%. This is 13% lower than the state poverty rate of 11.9%. The unemployment rate is 4.5%. This is 16% lower than the state rate of 5.4%. The median home value is $442,700. Housing costs are 3% lower than the state median of $454,200. The home-value-to-income ratio is 5.1x. 69.9% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Yamhill County is White (non-Hispanic), making up 73.9% of the population. Hispanic or Latino residents account for 17.1%. The Black or African American population (0.7%) is well below the state average of 1.8%. The Asian population (1.8%) is well below the state average of 4.4%.

Education

29.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 19% 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 89.8%.