'Shelby County, IL' definitions:
Shelby -- U.S. County in Illinois
From: Gazetteer 2000
Name :
Shelby -- U.S. County in Illinois
Population (2000) :
22893
Housing Units (2000) :
10060
Land area (2000) :
758.510902 sq. miles (1964.534133 sq. km)
Water area (2000) :
9.541609 sq. miles (24.712654 sq. km)
Total area (2000) :
768.052511 sq. miles (1989.246787 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
39.385719 N, 88.799105 W