Welcome to Alpena County MIGenWeb

Welcome to this Web site which is part of MIGenWeb and USGenWeb^®, a network of web sites that provide free online genealogical information. This county is currently available for adoption.

Alpena County was created on April 1, 1840 and organized as a county on February 7, 1857.  The county seat is the City of Alpena.

Alpena County is in the northeast of the mitten-shaped Lower Peninsula of Michigan. Lake Huron and Thunder Bay are to the east. Most of the county is drained by the Thunder Bay River and its tributaries. The Mackinaw State Forest occupies large tracts of land in the county. The Thunder Bay National Marine Sanctuary is offshore adjacent to the county. The 45th parallel bisects the county, meaning it is halfway between the North Pole and the equator.