Gallia County's estimated 2026 population is 29,188 with a growth rate of 0.4% in the past year according to the most recent United States census data. Gallia County is the 73rd largest county in Ohio. The 2010 population was 31,066 and has seen a growth of -6.05% since that time.
Data after 2023 is projected based on recent change
Overall: 41.4 years
Female: 42.3 years
Male: 40 years
There are 22,211 adults, (5,790 of whom are seniors) in Gallia County.
Female: 14,812 (51%)
Male: 14,256 (49%)
The racial composition of Gallia County includes 92.93% White, and smaller percentages for Two or more races, Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 27,012 | 92.93% |
| Two or more races | 862 | 2.97% |
| Black or African American | 590 | 2.03% |
| Other race | 332 | 1.14% |
| Asian | 237 | 0.82% |
| Native American | 34 | 0.12% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Gallia County's average per capita income is $43,772. Household income levels show a median of $56,830. The poverty rate stands at 16.44%.
Name | Median | Mean |
|---|---|---|
| Married Families | $87,254 | - |
| Families | $72,465 | $92,413 |
| Households | $56,830 | $77,972 |
| Non Families | $28,416 | $45,739 |
Average Income
Median Household Income
Poverty Rate