Local government in New Jersey is composed of counties and municipalities. Local jurisdictions are simpler in New Jersey than in other states because every square foot of the state is part of exactly one municipality; each of the 565 municipalities is in exactly one county; and each of the 21 counties has more than one municipality. New Jersey has no unincorporated areas, independent cities, or consolidated city-counties.
The forms of municipality in New Jersey are more complex than in most other states, though, potentially leading to misunderstandings regarding the governmental nature of an area. With five types and twelve forms of local government (plus several non-standard forms in municipalities with special charters), some areas of New Jersey are administered significantly differently from other states. To make matters more complex, New Jersey also distinguishes between regional, consolidated, and countywide school districts and school districts that serve only a single municipality. As well, the total area of any given airport may or may not lie completely within the boundaries of a given municipality — or even a given county.
New Jersey is divided into 21 counties, and all are governed by a Board of Chosen Freeholders, which typically serves as both the legislative and executive body. The boards consist of three, five, seven or nine members; only Warren County, New Jersey has a board of 3 freeholders, with voters rejecting expansion to five in November 2007. The means of election of the freeholders varies from all freeholders elected in districts, all elected at-large, or mixed district and at-large freeholders. Elections are first past the post for single-member districts, and for at-large elections when only one seat is at stake. For at-large elections with more than one seat, plurality-at-large voting is used.