| | Description: | DeWitt County, located in central Illinois, covers an area of 398 square miles and had a 2003 population of 16,679, according to estimates by the U.S. Department of Commerce's Bureau of the Census. Using these figures, DeWitt County was the 73rd largest county in Illinois geographically, but 69th largest in terms of population. Combining these two measures, DeWitt County had the 60th highest population density per square mile among Illinois 102 counties. | |
