Big Island Township is one of the fifteen townships

Civil township

A civil township is a widely used unit of local government in the United States, subordinate to, and geographic divisions of, a county. Specific responsibilities and the degree of autonomy vary based on each state. Civil townships are distinct from survey townships, but in states that have both,...

 of Marion County

Marion County, Ohio

Marion County is a county located in the state of Ohio, United States. As of the 2010 census, the population was 66,501. Its county seat is the city of Marion and is named for General Francis "The Swamp Fox" Marion, an officer in the Revolutionary War....

, Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The 2000 census

United States Census, 2000

The Twenty-second United States Census, known as Census 2000 and conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons enumerated during the 1990 Census...

 found 1,223 people in the township.

Geography

Located in the western part of the county, it borders the following townships:

• Salt Rock Township
  Salt Rock Township, Marion County, Ohio
  Salt Rock Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 699 people in the township, 311 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - north
• Grand Prairie Township
  Grand Prairie Township, Marion County, Ohio
  Grand Prairie Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 1,609 people in the township.-Geography:Located in the northwestern corner of the county, it borders the following townships:...
  
   - northeast corner
• Marion Township
  Marion Township, Marion County, Ohio
  Marion Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 44,908 people in the township, 9,590 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - east
• Green Camp Township - south
• Bowling Green Township
  Bowling Green Township, Marion County, Ohio
  Bowling Green Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 569 people in the township.-Geography:Located in the southwestern corner of the county, it borders the following townships:...
  
   - southwest
• Montgomery Township
  Montgomery Township, Marion County, Ohio
  Montgomery Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 2,498 people in the township, 1,175 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - west
• Grand Township
  Grand Township, Marion County, Ohio
  Grand Township is one of the fifteen townships of Marion County, Ohio, United States. The 2000 census found 385 people in the township.-Geography:Located in the northern part of the county, it borders the following townships:...
  
  - northwest corner

No municipalities are located in Big Island Township.

Government

The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1. Two are elected in the year after the presidential election and one is elected in the year before it. There is also an elected township fiscal officer, who serves a four-year term beginning on April 1 of the year after the election, which is held in November of the year before the presidential election. Vacancies in the fiscal officership or on the board of trustees are filled by the remaining trustees.