Waterloo is located in
Jackson County just northwest of
Jackson between Jackson and
Ann Arbor along Highway 52 near Big Portage Lake and South Lake. Waterloo is part of the
Jackson, Michigan metro area.
Hiram Putnam became the first settler here in 1834. The township organized in 1836, was first named East Portage. Sawmill owner Patrick Hubbard became the first postmaster on July 24, 1837 and he had the township and its post office renamed after the famous battle.