Carroll County, Iowa Demographics 2026

Population Overview

Carroll County is located in Iowa with a total population of 20,677. It is the 31st most populous county out of 99 in Iowa. The county encompasses 2 Census-designated places.

Age Demographics

The median age in Carroll County is 41.8 years. This is 8% higher than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Carroll County is $68,528. This is 6% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 13% lower. The poverty rate stands at 8.3%. This is 24% lower than the state poverty rate of 11.0%. The unemployment rate is 2.1%. This is 43% lower than the state rate of 3.6%. The median home value is $175,700. Housing costs are 10% lower than the state median of $195,900. With a home-value-to-income ratio of just 2.6x, Carroll County is one of the most affordable housing markets in the area. 75.0% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 71.5%.

Race & Ethnicity

Carroll County has a predominantly White (non-Hispanic) population, comprising 92.8% of all residents. Hispanic or Latino residents account for 3.2%. The Black or African American population (0.7%) is well below the state average of 3.8%. The Hispanic or Latino population (3.2%) is well below the state average of 7.0%. The Asian population (0.6%) is well below the state average of 2.4%.

Education

23.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 24% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.0%.