Caledonia Township, Alcona County, Michigan

Caledonia Township is a civil township of Alcona County in the U.S. state of Michigan. The population was 1,032 at the 2020 census.

Communities

Hubbard Lake is an unincorporated community and census-designated place that surrounds Hubbard Lake at . It should not be confused with another nearby community named Hubbard Lake just to the north in Alpena County. The CDP also extends into Alcona Township and Hawes Township.
Spruce is an unincorporated community located in the eastern portion of the township at . The community began with the construction of a sawmill by Don Hecox, who also became the first postmaster when the rural post office opened on May 5, 1898. The Spruce post office remains open and uses the 48762 ZIP Code, which serves the eastern portion of Caledonia Township and smaller portions of several neighboring township.

According to the U.S. Census Bureau, the township has a total area of , of which is land and (7.08%) is water.

The northern section of Hubbard Lake is within Caledonia Township.

runs briefly through the northeast corner of the township.
is a county-designated highway that has its northern terminus as U.S. Route 23 within the township.