'Cass County, MI' definitions:

Cass -- U.S. County in Michigan

From: Gazetteer 2000
Name :
Cass -- U.S. County in Michigan
Population (2000) :
51104
Housing Units (2000) :
23884
Land area (2000) :
492.178715 sq. miles (1274.736966 sq. km)
Water area (2000) :
16.285911 sq. miles (42.180313 sq. km)
Total area (2000) :
508.464626 sq. miles (1316.917279 sq. km)
Located within :
Michigan (MI), FIPS 26
Location :
41.921510 N, 86.022079 W