Boise County, Idaho Demographics 2026

Population Overview

Boise County is located in Idaho with a total population of 8,045. It is the 33rd most populous county out of 44 in Idaho.

Age Demographics

The median age in Boise County is 53.5 years. This is 44% higher than the state median of 37.1 years.

Economy, Income & Housing

The median household income in Boise County is $77,349. This is 4% higher than the state median of $74,636. Compared to the national median of $78,538, household income here is 2% lower. The poverty rate stands at 8.2%. This is 23% lower than the state poverty rate of 10.6%. The unemployment rate is 3.0%. This is 20% lower than the state rate of 3.7%. The median home value is $424,100. Housing costs are 13% higher than the state median of $376,000. The home-value-to-income ratio is 5.5x. 88.0% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 72.4%.

Race & Ethnicity

Boise County has a predominantly White (non-Hispanic) population, comprising 85.1% of all residents. Hispanic or Latino residents account for 4.8%. The Black or African American population (0.2%) is well below the state average of 0.7%. The Hispanic or Latino population (4.8%) is well below the state average of 13.3%.

Education

29.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% 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 95.6%.