Gallia County, Ohio
Gallia County: county in Ohio, United States
About
Gallia County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 30,934 and a population density of 25 people per km². After 10 years in 2020 county had an estimated population of 29,802 inhabitants. Its county seat is Gallipolis. The county was created 223 years ago in 1803.
County Snapshot
Gallia County at a glance
Gallia County currently has 10 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
10
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Ohio counties
88
Open related pagesLargest city
PorterPopulation 9,135
Top linked places
Quick Facts about Gallia County
| Population | 29,802 (2020) |
| Country | United States of America |
| State | Ohio (United States) |
| Plate code | 27 |
| Area | 1220 km2 |
| Water as percent of area | 1% |
| Land as percent of area | 99% |
| Latitude & Longitude | 38.8247,-82.3169 |
| Named for | Gaul |
| Altitude | 650 feet / 198 meters |
| Capital | Gallipolis |
| Establishment | March 25, 1803 |
| Time Zone | America/New_York |
| Local time | 18:26:50 (17th April 2026) |
| Density | 24 Pop. per km² as of 2020 |
| Population growth | -3.8% (2010-2020) |
| Weather | 84℉ Chance Rain Showers 7-days weather |
Geography
Gallia County is located at 38°49'29"N 82°19'1"W (38.8246700, -82.3169100). It has 6 neighbors: Jackson County, Lawrence County, Meigs County, Vinton County, Cabell County and Mason County.
Gallia County map
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The largest city of Gallia County is Gallipolis with a population of 3,545. Other cities include, Rio Grande population 777, Vinton population 528, Spring Valley population 500 and Crown City population 399. See all Gallia County cities & populated places.
Gallia County Populated Places
Cities, towns, neighborhoods & other populated places in Gallia County.
| City Name | Population | Title |
|---|---|---|
| Porter | 9,135 | Township of Ohio |
| Swan Creek | 8,398 | Township in Fulton County, Ohio |
| Gallipolis | 3,545 | Town in Ohio |
| Addison | 2,124 | Township in Gallia County, Ohio |
| Rio Grande | 777 | Village in Gallia County, Ohio, United States |
| Vinton | 528 | Village in Ohio |
| Spring Valley | 500 | Human settlement in Greene County, Ohio, United States of America |
| Crown City | 399 | Human settlement in Gallia County, Ohio, United States of America |
| Cheshire | 127 | Village in Gallia County, Ohio |
| Adamsville | 124 | Human settlement in Ohio, United States of America |
Weather
A chance of rain showers before 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
7-Day ForecastOfficial website of Gallia County
Official Website- Gallipolis
Demographics
According to census records, the population of Gallia County decreased by 3.8% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 30,934 | - | census |
| 2011 | 31,031 | 0.31% | estimation process |
| 2012 | 30,886 | -0.47% | estimation process |
| 2013 | 30,685 | -0.66% | estimation process |
| 2014 | 30,463 | -0.73% | estimation process |
| 2015 | 30,249 | -0.71% | estimation process |
| 2016 | 30,186 | -0.21% | estimation process |
| 2017 | 30,162 | -0.08% | estimation process |
| 2018 | 29,945 | -0.72% | estimation process |
| 2019 | 29,898 | -0.16% | estimation process |
| 2020 | 29,802 | -0.32% | estimation process |
People born in Gallia County (4)
People born in Gallia County, including Recipient of the Medal of Honor James M. Cumpston, politician John C. Hutsinpiller, Ohio Jurist Joseph Perry Bradbury, .
More notable people
- Merlin O'Neill (Commandant of the United States Coast Guard, 1949–1954) he was born in 30/10/1898
Ohio Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Franklin County | 1,324,624 | County in Massachusetts, United States |
| Cuyahoga County | 1,227,883 | County in Ohio, United States |
| Columbus | 884,356 | The fifteenth most populous city in the United States and the center of the Columbus metropolitan area. |
| Hamilton County | 817,985 | County in New York, United States |
| Summit County | 538,866 | County in northern Utah, United States |
| Montgomery County | 531,610 | County in Ohio, United States |
| Lucas County | 428,294 | County in Ohio, United States |
| Butler County | 385,648 | County in Ohio, United States of America |
| Cleveland | 378,589 | The second most populous city in Ohio and the center of the Cleveland metropolitan area. |
| Stark County | 369,772 | County in Ohio, United States |
| Lorain County | 312,172 | County in Ohio, United States |
| Cincinnati | 304,548 | The third most populous city in Ohio and the center of the Cincinnati metropolitan area. |
| Toledo | 271,455 | The fourth most populous city in Ohio and the center of the Toledo metropolitan area. |
| Warren County | 238,412 | County in New York, United States |
| Lake County | 229,569 | County in Ohio, United States |
| Mahoning County | 226,075 | County in Ohio, United States |