How do city charters give powers to local governments in the United States?

In the United States, a municipal charter serves as a foundational law that allows the residents of a specific locality to organize themselves into a municipal corporation, effectively functioning as a city.1

These charters act as the primary mechanism for delegating authority from the state to the local level, enabling the people to engage in local self-government. Regarding the specific distribution of power, cities in the United States receive their governing authority through these charters, which outline their powers in broad but specific terms. While these initial grants establish the framework for municipal operations, additional powers are frequently granted to these local governments over time through subsequent legislative actions.12

By defining the scope of a city's legal and administrative capacity, the charter provides the necessary mandate for local authorities to manage essential services—such as public health, zoning, and urban planning—within their jurisdiction.2