Oneida County, Idaho Demographics 2026

Population Overview

Oneida County is located in Idaho with a total population of 4,768. It is the 38th most populous county out of 44 in Idaho. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Oneida County is 40.8 years. This is 9% higher than the state median of 37.3 years.

Economy, Income & Housing

The median household income in Oneida County is $74,954. This is 4% lower than the state median of $77,800. It is also 7% lower than the national median of $80,734. The poverty rate stands at 10.8%. This is 2% higher than the state poverty rate of 10.6%. The unemployment rate is 1.5%. This is 61% lower than the state rate of 3.7%. The median home value is $272,000. Housing costs are 35% lower than the state median of $418,600. The home-value-to-income ratio is 3.6x. 88.3% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 72.1%.

Race & Ethnicity

Oneida County has a predominantly White (non-Hispanic) population, comprising 91.8% of all residents. Hispanic or Latino residents account for 4.5%. The Hispanic or Latino population (4.5%) is well below the state average of 13.7%.

Education

26.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.7%.

Data Sources & Methodology

All figures for Oneida County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Idaho and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.