Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 56-58.
BULLITT COUNTY, situated in the northern part of Kentucky, on the northeasterly side of Salt river. Length, 30 miles; mean breadth, 10, with an area of 300 square miles. The face of the country is hilly; the soil varied, but generally productive. Seat of justice, Shepherdsville. Pop. in 1820, 5,381; in 1830, 5,642; in 1840, 6,334; in 1850, 6,774.