Greene County, Ohio Demographics 2026

Population Overview

Greene County is located in Ohio with a total population of 168,531. It is the 18th most populous county out of 88 in Ohio. The county encompasses 2 Census-designated places.

Age Demographics

The median age in Greene County is 38.7 years. This is 2% lower than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Greene County is $85,218. This is 22% higher than the state median of $69,680. Compared to the national median of $78,538, household income here is 9% higher. The poverty rate stands at 9.8%. This is 26% lower than the state poverty rate of 13.2%. The unemployment rate is 4.0%. This is 17% lower than the state rate of 4.9%. The median home value is $238,000. Housing costs are 19% higher than the state median of $199,200. With a home-value-to-income ratio of just 2.8x, Greene County is one of the most affordable housing markets in the area. 67.6% of occupied housing units are owner-occupied.

Race & Ethnicity

The largest racial or ethnic group in Greene County is White (non-Hispanic), making up 81.7% of the population. Black or African American residents account for 5.8%. The Black or African American population (5.8%) is well below the state average of 12.1%.

Education

41.3% of residents aged 25 and older hold a bachelor's degree or higher. This places Greene County in the top 10% of all cities in the state for educational attainment. This is 33% 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 94.5%. Notably, 19.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.