Warren County, Ohio Demographics 2026

Population Overview

Warren County is located in Ohio with a total population of 246,364. It is the 10th most populous county out of 88 in Ohio. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Warren County is 39.8 years. This is about average than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Warren County is $107,843. This is 55% higher than the state median of $69,680. Compared to the national median of $78,538, household income here is 37% higher. The poverty rate stands at 5.4%. This is 59% lower than the state poverty rate of 13.2%. The unemployment rate is 3.1%. This is 35% lower than the state rate of 4.9%. The median home value is $319,700. Housing costs are 60% higher than the state median of $199,200. The home-value-to-income ratio is 3.0x. 79.6% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 67.0%.

Race & Ethnicity

The largest racial or ethnic group in Warren County is White (non-Hispanic), making up 82.7% of the population. Asian residents account for 6.8%. The Black or African American population (3.3%) is well below the state average of 12.1%. The Asian population is significantly higher than the state average (6.8% vs 2.4%).

Education

45.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Warren County in the top 10% of all cities in the state for educational attainment. This is 48% 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 95.0%. Notably, 18.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.