Gallia County, Ohio Demographics 2026

Population Overview

Gallia County is located in Ohio with a total population of 29,162. It is the 73rd most populous county out of 88 in Ohio.

Age Demographics

The median age in Gallia County is 41.3 years. This is 4% higher than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Gallia County is $56,455. This is 19% lower than the state median of $69,680. Compared to the national median of $78,538, household income here is 28% lower. The poverty rate stands at 14.8%. This is 12% higher than the state poverty rate of 13.2%. The unemployment rate is 3.6%. This is 25% lower than the state rate of 4.9%. The median home value is $135,000. Housing costs are 32% lower than the state median of $199,200. With a home-value-to-income ratio of just 2.4x, Gallia County is one of the most affordable housing markets in the area. 76.4% of occupied housing units are owner-occupied. This homeownership rate is 14% higher than the state average of 67.0%.

Race & Ethnicity

Gallia County has a predominantly White (non-Hispanic) population, comprising 92.2% of all residents. Black or African American residents account for 1.9%. The Black or African American population (1.9%) is well below the state average of 12.1%. The Hispanic or Latino population (1.0%) is well below the state average of 4.6%. The Asian population (0.8%) is well below the state average of 2.4%.

Education

17.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% 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 86.9%.