Lyon County, Iowa Demographics 2026

Population Overview

Lyon County is located in Iowa with a total population of 12,087. It is the 62nd most populous county out of 99 in Iowa.

Age Demographics

The median age in Lyon County is 38.1 years. This is 1% lower than the state median of 38.6 years. With 28.5% of the population under 18, Lyon County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Lyon County is $72,881. This is about average than the state median of $73,147. Compared to the national median of $78,538, household income here is 7% lower. The poverty rate stands at 5.3%. This is 52% lower than the state poverty rate of 11.0%. The unemployment rate is 2.4%. This is 35% lower than the state rate of 3.6%. The median home value is $215,600. Housing costs are 10% higher than the state median of $195,900. The home-value-to-income ratio is 3.0x. 83.4% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 71.5%.

Race & Ethnicity

Lyon County has a predominantly White (non-Hispanic) population, comprising 94.0% of all residents. Hispanic or Latino residents account for 3.5%. The Black or African American population (0.3%) is well below the state average of 3.8%. The Hispanic or Latino population (3.5%) is well below the state average of 7.0%. The Asian population (0.4%) is well below the state average of 2.4%.

Education

20.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% 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 95.4%.