Clark County lies on the north bank of the
Ohio River. A significant gateway to the state of
Indiana, Clark County's settlement began in 1783. The state of
Virginia rewarded General
George Rogers Clark and his regiment for their
victorious capture of Forts Kaskaskia, Cahokia, and Vincennes from the British, by granting them of land. A small portion of this land, , became known as
Clarksville, the first authorized American settlement in the
Northwest Territory, founded the next year in 1784. Clark County was formed on February 3, 1801, with territory annexed from
Knox, the first county formed in the Territory in 1790. This original area in Clark County was subsequently altered and reduced with the formation of other counties: Harrison (1808), Franklin, Jefferson, and Wayne (1811), Switzerland and Washington (1814), Jackson and Ripley (1816), Jennings (1817), Crawford and Randolph (1818), Fayette and Floyd (1819), Scott (1820), Union (1821), Decatur and Rush (1822). The first county seat was established in
Springville, on April 7, 1801. From its beginning Clark County's history, culture and growth have been linked to the development of the river. Early nineteenth-century steamboats transported goods to the upper Ohio, providing opportunities for commercial and industrial growth in the county. In 1832,
James Howard founded the
Howard shipyards making Clark County a leader in shipbuilding. The railroad brought further economic growth. The
Monon line spanned from New Albany to Chicago, and the
Jeffersonville, Madison, and Indianapolis Railroad provided Clark County and southern Indiana with access to the northern trading centers of Indianapolis and Chicago. Industries locating to Clark County during the nineteenth century included the
Louisville Cement Company in
Speed, Indiana and the Ford Plate Glass Company established in Jeffersonville in 1876. During the 1920s, Clark County attracted the
Colgate-Palmolive Company to the Clarksville Riverfront. Colgate purchased the former
Indiana Reformatory building in 1923. The company rehabilitated and adapted the building for its dedication in 1924. It stayed in business until early 2008. During
World War II the county prospered. The federal government began the Indiana Arsenal near
Charlestown in 1940. Producing smokeless powder for the war effort, the arsenal employed up to 20,000. Howard shipyards was commissioned by the Navy to produce landing craft. Later Howard shipyards reorganized as Jeffersonville Boat and Machine Company (
Jeffboat) — a current major employer (1991). When the war ended, the county experienced significant residential and commercial growth, aided by the
1956 Interstate Act. The improved access provided by
Interstate 65 encouraged additional subdivisions and shopping centers. Clark County history has been closely associated with the development of the
Ohio River. From its beginnings, Clark County relied on the river for economic opportunities. Clark County has diversified its economic base, lessened its dependency on the river, and continues to develop in new directions. However, the county still looks to the river as one link to its significant pioneer heritage. ==Geography==