In 2020, Gallia County, OH had a population of 30k people with a median age of 40.7 and a median household income of $48,975. Between 2019 and 2020 the population of Gallia County, OH declined from 30,088 to 29,995, a −0.309% decrease and its median household income grew from $44,858 to $48,975, a 9.18% increase.
The 5 largest ethnic groups in Gallia County, OH are White (Non-Hispanic) (93%), Two+ (Non-Hispanic) (2.14%), Black or African American (Non-Hispanic) (1.84%), Asian (Non-Hispanic) (0.767%), and American Indian & Alaska Native (Non-Hispanic) (0.5%).
None of the households in Gallia County, OH reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.4% of the residents in Gallia County, OH are U.S. citizens.
In 2020, the median property value in Gallia County, OH was $118,400, and the homeownership rate was 75%. Most people in Gallia County, OH drove alone to work, and the average commute time was 28.5 minutes. The average car ownership in Gallia County, OH was 2 cars per household.