Oneida County, Wisconsin Demographics 2026

Population Overview

Oneida County is located in Wisconsin with a total population of 38,007. It is the 39th most populous county out of 72 in Wisconsin. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Oneida County is 52.2 years. This is 30% higher than the state median of 40.1 years. 10.6% 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 Oneida County is $69,621. This is 8% lower than the state median of $75,670. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 8.2%. This is 22% lower than the state poverty rate of 10.6%. The unemployment rate is 2.2%. This is 33% lower than the state rate of 3.3%. The median home value is $227,500. Housing costs are 8% lower than the state median of $247,400. The home-value-to-income ratio is 3.3x. 84.0% of occupied housing units are owner-occupied. This homeownership rate is 24% higher than the state average of 67.9%.

Race & Ethnicity

Oneida County has a predominantly White (non-Hispanic) population, comprising 93.5% of all residents. Hispanic or Latino residents account for 1.7%. The Black or African American population (0.5%) is well below the state average of 6.0%. The Hispanic or Latino population (1.7%) is well below the state average of 7.8%. The Asian population (0.4%) is well below the state average of 2.9%.

Education

28.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 13% lower than the state rate of 32.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.7%.