Union County, Ohio Demographics 2026

Population Overview

Union County is located in Ohio with a total population of 65,293. It is the 37th most populous county out of 88 in Ohio.

Age Demographics

The median age in Union County is 38.1 years. This is 4% lower than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Union County is $109,506. This is 57% higher than the state median of $69,680. Compared to the national median of $78,538, household income here is 39% higher. The poverty rate stands at 5.1%. This is 62% lower than the state poverty rate of 13.2%. The unemployment rate is 2.4%. This is 51% lower than the state rate of 4.9%. The median home value is $306,600. Housing costs are 54% higher than the state median of $199,200. With a home-value-to-income ratio of just 2.8x, Union County is one of the most affordable housing markets in the area. 79.4% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 67.0%.

Race & Ethnicity

Union County has a predominantly White (non-Hispanic) population, comprising 85.9% of all residents. Asian residents account for 4.8%. The Black or African American population (2.4%) is well below the state average of 12.1%. The Asian population is significantly higher than the state average (4.8% vs 2.4%).

Education

39.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Union County in the top 10% of all cities in the state for educational attainment. This is 26% higher 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 95.2%.