Caribou County, Idaho Demographics 2026

Population Overview

Caribou County is located in Idaho with a total population of 7,162. It is the 35th most populous county out of 44 in Idaho. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Caribou County is 38.5 years. This is 3% higher than the state median of 37.3 years.

Economy, Income & Housing

The median household income in Caribou County is $68,782. This is 12% lower than the state median of $77,800. It is also 15% lower than the national median of $80,734. The poverty rate stands at 9.2%. This is 13% lower than the state poverty rate of 10.6%. The unemployment rate is 1.9%. This is 49% lower than the state rate of 3.7%. The median home value is $241,500. Housing costs are 42% lower than the state median of $418,600. The home-value-to-income ratio is 3.5x. 81.7% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 72.1%.

Race & Ethnicity

Caribou County has a predominantly White (non-Hispanic) population, comprising 90.5% of all residents. Hispanic or Latino residents account for 5.7%. The Black or African American population (0.1%) is well below the state average of 0.7%. The Hispanic or Latino population (5.7%) is well below the state average of 13.7%.

Education

16.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 47% 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 91.0%.

Data Sources & Methodology

All figures for Caribou 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.