Gallia information on the site is deemed reliable, but not guaranteed. Our Gallia stats, Gallia census, and Gallia information is aggregated from many different sources and may be dated. Currently, we have two Gallia foreclosures of thirteen thousand four hundred ninety-eight Gallia, Ohio housing units housing units, of which twelve thousand sixty are occupied, nine thousand thirty-three are owner occupied, three thousand twenty-seven are rented, one thousand four hundred thirty-eight are vacant, and two thousand eight hundred sixty-nine have mortgages. has twelve thousand sixty households, and thirty-one thousand sixty-nine citizens.