'De Witt County' definitions:
De Witt -- U.S. County in Illinois
From: Gazetteer 2000
Name :
De Witt -- U.S. County in Illinois
Population (2000) :
16798
Housing Units (2000) :
7282
Land area (2000) :
397.575757 sq. miles (1029.716440 sq. km)
Water area (2000) :
7.578630 sq. miles (19.628562 sq. km)
Total area (2000) :
405.154387 sq. miles (1049.345002 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
40.178001 N, 88.914787 W