In 2017, Gallia County, OH had a population of 30.2k people with a median age of 40.6 and a median household income of $42,002. Between 2016 and 2017 the population of Gallia County, OH declined from 30,376 to 30,203, a -0.57% decrease and its median household income grew from $39,423 to $42,002, a 6.54% increase.
The population of Gallia County, OH is 93.6% White Alone, 2.79% Black or African American Alone, and 1.31% Hispanic or Latino. N/A% of the people in Gallia County, OH speak a non-English language, and 99.5% are U.S. citizens.
The median property value in Gallia County, OH is $103,200, and the homeownership rate is 75.4%. Most people in Gallia County, OH commute by Drove Alone, and the average commute time is 27.4 minutes. The average car ownership in Gallia County, OH is 2 cars per household.