Gallia County, OH — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
29,162
Male
14,378
49.3%
Female
14,784
50.7%
Median Age
41.3 yrs
Avg Household Size
2.5
Foreign Born
1.1%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher12.2%
High School or Higher40.6%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.2%
Disability
0.0%
Non-English Home
8.9%
Married
43.1%
Gallia County, OH has a population of 29,162 according to 2023 Census Bureau estimates. The median age is 41.3 years. The largest racial or ethnic group is White at 92.4% of the population. 12.2% of residents hold a bachelor's degree or higher. 1.1% of residents are foreign-born.