Adams County, Idaho Demographics 2026

Population Overview

Adams County is located in Idaho with a total population of 4,599. It is the 39th most populous county out of 44 in Idaho.

Age Demographics

The median age in Adams County is 54.3 years. This is 46% higher than the state median of 37.1 years. 10.2% 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 Adams County is $59,286. This is 21% lower than the state median of $74,636. Compared to the national median of $78,538, household income here is 25% lower. The poverty rate stands at 15.0%. This is 41% higher than the state poverty rate of 10.6%. The unemployment rate is 6.6%. This is 80% higher than the state rate of 3.7%. The median home value is $327,300. Housing costs are 13% lower than the state median of $376,000. The home-value-to-income ratio is 5.5x. 83.1% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 72.4%.

Race & Ethnicity

Adams County has a predominantly White (non-Hispanic) population, comprising 88.8% of all residents. Hispanic or Latino residents account for 4.6%. The Black or African American population (0.2%) is well below the state average of 0.7%. The Hispanic or Latino population (4.6%) is well below the state average of 13.3%.

Education

21.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% lower than the state rate of 31.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.9%.