Minidoka County, Idaho Demographics 2026

Population Overview

Minidoka County is located in Idaho with a total population of 21,922. It is the 18th most populous county out of 44 in Idaho.

Age Demographics

The median age in Minidoka County is 34.5 years. This is 7% lower than the state median of 37.1 years. With 29.2% of the population under 18, Minidoka County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Minidoka County is $70,060. This is 6% lower than the state median of $74,636. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 14.9%. This is 40% higher than the state poverty rate of 10.6%. The unemployment rate is 3.0%. This is 17% lower than the state rate of 3.7%. The median home value is $235,300. Housing costs are 37% lower than the state median of $376,000. The home-value-to-income ratio is 3.4x. 72.8% of occupied housing units are owner-occupied.

Race & Ethnicity

The largest racial or ethnic group in Minidoka County is White (non-Hispanic), making up 59.7% of the population. Hispanic or Latino residents account for 36.7%. The Black or African American population (0.3%) is well below the state average of 0.7%. The Hispanic or Latino population is significantly higher than the state average (36.7% vs 13.3%). The Asian population (0.2%) is well below the state average of 1.3%.

Education

16.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 46% 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 82.1%.