Gazetteer/Almanac
Headnote
WASHINGTON COUNTY, situated on the southeast boundary of Ohio, with Ohio river on the southeast, and traversed by Muskingum river. Area, 713 square miles. Face of the country, hilly; soil, near the rivers, good; elsewhere, unproductive. Seat of justice, Marietta. Pop. in 1820, 10,425; in 1830, 11,731; in 1840, 20,823; in 1850, 29,540. (Fanning's, 1853)