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 221 years ago in 1803.
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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% |
Named for : | Gaul |
Altitude : | 650 feet / 198 meters |
Capital : | Gallipolis |
Establishment : | March 03, 1803 |
Time Zone : | America/New_York |
Local time : | 21:22:12 (22nd February 2025) |
Density : | 24 Pop. per km² as of 2020 |
Population growth : | -3.8% (2010-2020) |
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
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
The largest city of Gallia County is Spring Valley with a population of 500. Other cities include, Crown City population 399 and Adamsville population 124. 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 |
- Official Website
Official website of Gallia County
Gallia County has 6 neighbours.
- Jackson County county in Ohio, United States
- Lawrence County county in Ohio, United States
- Meigs County county in Ohio, United States of America
- Vinton County county in Ohio, United States
- Cabell County county in West Virginia, United States
- Mason County county in West Virginia, United States
- 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, .
List
- 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 |