| | Description: | Will County, located in northeastern Illinois, covers an area of 837 square miles and had a 2003 population of 586,706, according to estimates by the U.S. Department of Commerce's Bureau of the Census. Using these figures, Will County was the 13th largest county in Illinois geographically, but 4th largest in terms of population. Combining these two measures, Will County had the 5th highest population density per square mile among Illinois 102 counties. | |
