Onekama Township is a civil township of Manistee County in the U.S. state of Michigan. The population was 1,338 at the 2020 census.

  • Pierport is an unincorporated community in the northwest part of the township at . In 1866, the Turnersport Pier Company built a pier here on Lake Michigan to ship wood. The place was at first known as "Turnersport" and was given a post office with that name in August 1868. Charles W. Perry from Vermont first came here in 1868. He bought the property in 1871 and developed the settlement. The settlement was renamed "Pierport", and the post office was renamed in June 1872. It was also known as "Perry's Pier". The post office operated seasonally during the summer from 1929 until closing in December 1933.
  • Portage Point is an unincorporated summer resort in the southwest part of the township.
  • Red Park is an unincorporated community in the township on the south shore of Portage Lake.
  • Wick-A-Te-Wah is an unincorporated summer resort in the township on the south shore of Portage Lake.
  • Williamsport was a historical settlement in the southwest part of the township.
  • Crescent Beach is located on the southwestern shore of Portage Lake and stretches from Red Park to Williamsport.

Summer camps

In addition to the summer communities, there are a number of well-known summer camps associated with schools or church denominations. These include:

  • Camp Tosebo on the south side of Portage Lake
  • Little Eden on the north side of Portage Lake
  • Portage Lake Covenant Bible Camp on the southeastern side of Portage Lake

Geography

According to the United States Census Bureau, the township has a total area of , of which are land and , or 21.4%, are water.

Demographics

As of the census