Butler County, Ohio Demographics 2026

Population Overview

Butler County is located in Ohio with a total population of 389,910. It is the 7th most populous county out of 88 in Ohio. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Butler County is 37.1 years. This is 6% lower than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Butler County is $81,194. This is 17% higher than the state median of $69,680. Compared to the national median of $78,538, household income here is 3% higher. The poverty rate stands at 11.7%. This is 11% lower than the state poverty rate of 13.2%. The unemployment rate is 4.8%. This is 1% lower than the state rate of 4.9%. The median home value is $243,000. Housing costs are 22% higher than the state median of $199,200. The home-value-to-income ratio is 3.0x. 69.9% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 67.0%.

Race & Ethnicity

The largest racial or ethnic group in Butler County is White (non-Hispanic), making up 75.9% of the population. Black or African American residents account for 8.2%. The Asian population is significantly higher than the state average (4.1% vs 2.4%).

Education

32.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% 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 91.2%.