Counties and Municipalities

The U.S. state of New Jersey has 21 counties. In New Jersey, a county is a local level of government between the state and municipalities. These counties together contain 567 municipalities, or administrative entities composed of clearly defined territory; 253 boroughs, 52 cities, 15 towns, 241 townships, and 3 villages. The largest municipality by population in New Jersey is Newark, with 311,549 residents, whereas the smallest is Walpack Township, with just 7 residents.