How many counties are there in New Jersey?

New Jersey has a total of 21 counties, which is significant in understanding the state's local governance structure. Each county serves as an important administrative region, with designated responsibilities that include public health, transportation, and law enforcement functions. The counties are critical in organizing local services and providing a framework for municipalities within their borders.

The number of counties can be significant in various contexts, such as determining voting districts, the management of resources, and local government operations. Therefore, knowing there are 21 counties provides a foundational understanding necessary for anyone involved in municipal governance in New Jersey.