Black Creek Township is one of the fourteen 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 Mercer County

Mercer County, Ohio

Mercer County is a county located in the state of Ohio, United States. Its county seat is Celina and is named for Hugh Mercer, an officer in the American Revolutionary War.The Celina Micropolitan Statistical Area includes all of Mercer County.-Geography:...

, 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 631 people in the township.

Geography

Located in the northwestern corner of the county, it borders the following townships:

• Willshire Township, Van Wert County
  Willshire Township, Van Wert County, Ohio
  Willshire Township is one of the twelve townships of Van Wert County, Ohio, United States. The 2000 census found 1,719 people in the township, 1,057 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - north
• Liberty Township, Van Wert County
  Liberty Township, Van Wert County, Ohio
  Liberty Township is one of the twelve townships of Van Wert County, Ohio, United States. The 2000 census found 1,696 people in the township, 912 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - northeast corner
• Dublin Township
  Dublin Township, Mercer County, Ohio
  Dublin Township is one of the fourteen townships of Mercer County, Ohio, United States. The 2000 census found 2,254 people in the township, 1,128 of whom lived in the unincorporated portions of the township.-Geography:...
  
   - east
• Hopewell Township
  Hopewell Township, Mercer County, Ohio
  Hopewell Township is one of the fourteen townships of Mercer County, Ohio, United States. The 2000 census found 1,066 people in the township.-Geography:Located in the north central part of the county, it borders the following townships:...
  
   - southeast corner
• Liberty Township
  Liberty Township, Mercer County, Ohio
  Liberty Township is one of the fourteen townships of Mercer County, Ohio, United States. The 2000 census found 917 people in the township.-Geography:Located in the northwestern part of the county, it borders the following townships:...
  
   - south
• Jefferson Township, Adams County, Indiana
  Jefferson Township, Adams County, Indiana
  Jefferson Township is one of twelve townships in Adams County, Indiana, USA. As of the 2000 census, its population was 947.-Geography:According to the United States Census Bureau, Jefferson Township covers an area of .-Political districts:...
  
   - southwest
• Blue Creek Township, Adams County, Indiana
  Blue Creek Township, Adams County, Indiana
  Blue Creek Township is one of twelve townships in Adams County, Indiana, USA. As of the 2000 census, its population was 1,195.-Geography:According to the United States Census Bureau, Blue Creek Township covers an area of .-Political districts:...
  
  - northwest

No municipalities are located in Black Creek 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.