Gallia County, Ohio Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Gallia County, OH Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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C
Health Below averageAmong the 5 least healthy counties in Ohio
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D
Income Well below averageLess wealthy than 82% of counties in Ohio
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F
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Population | 29,068 | 11,799,428 | 337,468,954 |
| Population density (per sq mi) | 61.7 | 263.2 | 86.4 |
| Population growth (%/yr) | -0.55% | 0.23% | 0.59% |
| Median age | 42.0 | 38.5 | 37.3 |
| Households | 11,614 | 4,857,236 | 130,235,071 |
Population in Gallia County declined by 5.7% from 2009 to 2024, reaching 29,068 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Gallia County is Gen X, aged 45–60, at 20.4% of residents. That is 0.3 points above Ohio as a whole.
- Gen Z 13–28 5,685 19.6% -1.3 pts
- Millennials 29–44 5,445 18.7% -2.4 pts
- Gen X 45–60 5,926 20.4% +0.3 pts
- Boomers 61–79 5,757 19.8% +1.7 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Ohio, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.3% of the people living in Gallia County and men 48.7%.
- Women 51.3% Ohio 50.8%
- Men 48.7% Ohio 49.2%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Gallia County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Gallia County has a the economy index of D, which means it is barely prosperous.
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median household income | $57,211 | $71,509 | $80,455 |
| Income growth (%/yr) | 4.82% | 4.38% | 4.80% |
| Unemployment rate | 3.5% | 4.8% | 5.2% |
The median household income in Gallia County is about 20% lower than in Ohio.
Housing
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median home price | $258,333 | $139,044 | $248,835 |
| Median rent | $813 | $1,033 | $1,407 |
| Homeownership rate | 74.7% | 67.2% | 65.2% |
The median home price in Gallia County is about 26.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $813 per month for that long.
Commute Time & Mobility
Commuters in Gallia County spend about 38 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 158 hours, about 6.6 full days, spent commuting.
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 18.9 | 21.1 | 22.4 |
| Round-trip commute (min) | 37.8 | 42.2 | 44.8 |
| Yearly time spent (hours) | 158 | 176 | 187 |
| Estimated yearly cost | $4,887 | $5,447 | $5,790 |
| Work from home | 8.0% | 13.0% | 15.0% |
| Highway traffic (vehicles/day) | 4,215 | 8,648 | 8,813 |
| Local road traffic (vehicles/day) | 901 | 1,212 | 1,355 |
Fastest commutes among counties in
Ohio:
Hancock County (15.3 min), Van Wert County (15.5 min), Mercer County (16.0 min).
Slowest:
Morgan County (32.5 min), Vinton County (32.0 min), Brown County (32.0 min).
The average commute time in Gallia County is 19 minutes, shorter than the 21 minutes in Ohio.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Gallia County has a education index of F, which means it scores poorly in education.
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 17.4% | 28.1% | 31.6% |
| Average household size | 2.45 | 2.37 | 2.53 |
Highest education index among counties in
Ohio:
Delaware County (0.4), Warren County (0.4), Greene County (0.3).
Lowest:
Holmes County (0.1), Vinton County (0.2), Noble County (0.2).
Health
Gallia County has a health index of C, which means it is somewhat healthy.
| Metric | Gallia County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 73.9 | 77.0 | 78.3 |
| Self-rated poor health | 19.5% | 17.2% | 16.3% |
| Smokers | 28.1% | 24.3% | 19.0% |
Highest health index among counties in
Ohio:
Delaware County (0.8), Union County (0.8), Warren County (0.8).
Lowest:
Adams County (0.8), Holmes County (0.8), Scioto County (0.8).
Gallia County, OH Compared With Nearby Counties
Gallia County, OH is typical in size for this group, 29,068 residents against a local median of 32,650, so the measures below are close to a like for like comparison. Gallia County, OH's median home price, at $258,333, runs 124% above the $115,517 typical of the counties around it.
The counties themselves spread $174,902 on median home price, so Gallia County, OH sits at one end of an already wide local range rather than apart from it. Gallia County, OH has the highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Gallia County, OH | 29,068 | $57,211 #3/6 | $258,333 #1/6 | 18.9 min #2/6 |
| Mason County, WV | 25,043 | $49,807 | $181,696 | 26.2 min |
| Lawrence County, OH | 56,809 | $58,057 | $115,918 | 20.9 min |
| Jackson County, OH | 32,650 | $57,479 | $6,794 | 20.9 min |
| Meigs County, OH | 21,896 | $47,026 | $115,517 | 28.1 min |
| Cabell County, WV | 92,739 | $56,062 | $55,124 | 18.0 min |
Frequently Asked Questions
Common questions about Gallia County, Ohio.
How big is Gallia County, Ohio by population?
About 29,068 people live in Gallia County, Ohio, in 11,614 households of 2.5 people on average. The median age is 42.0, so residents are older than the U.S. median of 37.3 by about 5 years.
How densely populated is Gallia County, Ohio?
Averaged over its land area, Gallia County, Ohio has 62 people per square mile, a density typical of rural areas. That is close to the U.S. average of 86.
Is Gallia County, Ohio an affordable place to live?
The median home costs 4.5 times the median household income ($258,333 against $57,211), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $813 a month takes about 17% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is unemployment high in Gallia County, Ohio?
Unemployment in Gallia County, Ohio is only 3.5%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How common is a college degree in Gallia County, Ohio?
17.4% of adults in Gallia County, Ohio hold a bachelor's degree or higher (about 1 in 6), well below the U.S. share of 31.6%.
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