Grundy County, Iowa Demographics 2026

Population Overview

Grundy County is located in Iowa with a total population of 12,352. It is the 60th most populous county out of 99 in Iowa.

Age Demographics

The median age in Grundy County is 41.5 years. This is 8% higher than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Grundy County is $83,617. This is 14% higher than the state median of $73,147. Compared to the national median of $78,538, household income here is 6% higher. The poverty rate stands at 6.4%. This is 41% lower than the state poverty rate of 11.0%. The unemployment rate is 2.2%. This is 40% lower than the state rate of 3.6%. The median home value is $180,500. Housing costs are 8% lower than the state median of $195,900. With a home-value-to-income ratio of just 2.2x, Grundy County is one of the most affordable housing markets in the area. 84.0% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 71.5%.

Race & Ethnicity

Grundy County has a predominantly White (non-Hispanic) population, comprising 95.6% of all residents. Hispanic or Latino residents account for 1.5%. The Black or African American population (0.7%) is well below the state average of 3.8%. The Hispanic or Latino population (1.5%) is well below the state average of 7.0%. The Asian population (0.5%) is well below the state average of 2.4%.

Education

24.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 20% 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 97.2%.