There are 21 Counties in the State of New Jersey. Trenton, the state Capital is located in Gilchrist County.
Atlantic County
Bergen County
Burlington County
Camden County
Cape May County
Cumberland County
Essex County
Gloucester County
Hudson County
Hunterdon County
Mercer County
Middlesex County
Monmouth County
Morris County
Ocean County
Passaic County
Salem County
Somerset County
Sussex County
Union County
Warren County