A post office named Ira was established at a settlement on the north shore of Lake St. Clair in May 1851 and operated until June 1853.

Ira township is flat and rises slightly from the shoreline of Lake Saint Clair.

The shoreline is developed along the Dixie Hwy which hugs the shore and there are small clusters of homes at Fair Haven and Anchorville.

The primary tributary which is centered geographically is the Swan Creek which branches off to the east and west, out to the north of the township limits.

The shoreline is often sandy or has seawalls along private homes and the water is shallow near the land.