Gallia County, Ohio Demographics 2026
Gallia County, Ohio has a population of 29,162, the 73rd most populous county in Ohio. The median household income is $56,455 and the median home value is $135,000. The poverty rate is 14.8%.
Gallia County Quick Facts
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Gallia County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Gallipolis | 3,352 | $50,631 | 19.3% | $119,800 |
| Bidwell | 1,124 | $74,583 | 24.2% | $108,800 |
| Rio Grande | 808 | $40,721 | 39.4% | $181,600 |
| Crown City | 538 | $44,922 | 30.5% | $133,300 |
| Vinton | 290 | N/A | 19.7% | $98,100 |
| Kanauga | 276 | $63,125 | 3.3% | N/A |
| Cheshire | 95 | $53,750 | 7.4% | $93,000 |
| Centerville (Thurman) | 41 | N/A | 63.4% | $66,700 |
Explore Ohio Rankings
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. The county encompasses 8 Census-designated places.
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. It is also 28% lower than the national median of $78,538. 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%.
Data Sources & Methodology
All figures for Gallia County come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023), with comparisons drawn against Ohio and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Gallia County, Ohio?
Gallia County has a population of 29,162, making it the 73rd most populous county in Ohio.
What is the median income in Gallia County?
The median household income in Gallia County is $56,455 with a poverty rate of 14.8%.
How many cities are in Gallia County, Ohio?
Gallia County contains 8 Census-designated places.