Requirements
A charter township is mostly exempt from annexation from contiguous cities or villages providing that the township meets certain requirements:
- Has state equalized valuation of at least $25,000,000
- Has a minimum population density of 150 people per square mile (58/km²)
- Provides fire protection service by contract or otherwise
- Is governed by a comprehensive zoning ordinance or master plan
- Provides solid waste disposal services to township residents, within or without the township, by contract, license, or municipal ownership
- Provides water or sewer services, or both, by contract or otherwise
- Provides police protection through contract with the sheriff in addition to normal sheriff patrol, through an intergovernmental contract, or through its own police department
Read more about this topic: Charter Township