Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 144.
GREENUP COUNTY, situated at the northeasterly corner of Kentucky, with Ohio river on the north and northeast, and Sandy river on the southeast. Area, 768 square miles. Face of the country, hilly and broken; soil inferior. Seat of justice, Greenupsburgh. Pop. in 1820, 4,311; in 1830, 5,853; in 1840, 6,279; in 1850, 9,654.