'Douglas County, IL' definitions:
Douglas -- U.S. County in Illinois
From: Gazetteer 2000
Name :
Douglas -- U.S. County in Illinois
Population (2000) :
19922
Housing Units (2000) :
8005
Land area (2000) :
416.862108 sq. miles (1079.667857 sq. km)
Water area (2000) :
0.557141 sq. miles (1.442988 sq. km)
Total area (2000) :
417.419249 sq. miles (1081.110845 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
39.769979 N, 88.236661 W