Much of the land in the county is given over to agriculture, especially on the open prairie in the northern and western parts; the county's farmland is among the most productive in the state. Nearer the river along the southeastern border, the land has many hills, valleys, and tributary streams and is more heavily wooded. Agriculture, manufacturing, government, education, and health care each provide substantial portions of the jobs in the county. Four Indiana state roads cross the county, as do two U.S. Routes and one major railroad line.