'Au Sable' definitions:

Au Sable, MI -- U.S. Census Designated Place in Michigan

From: Gazetteer 2000
Name :
Au Sable, MI -- U.S. Census Designated Place in Michigan
Population (2000) :
1533
Housing Units (2000) :
727
Land area (2000) :
2.107409 sq. miles (5.458164 sq. km)
Water area (2000) :
0.027192 sq. miles (0.070427 sq. km)
Total area (2000) :
2.134601 sq. miles (5.528591 sq. km)
FIPS code :
04280
Located within :
Michigan (MI), FIPS 26
Location :
44.411134 N, 83.337346 W
Note :
some ZIP codes may be omitted esp. for suburbs.