Admitted to the Union on December 18, 1787 as the 3rd state.
- 1790 – 1820 federal censuses lost for all counties except 1800 Cumberland County.
- 1830 – 1940 federal censuses extant for all counties except for 1890.
Atlantic | Bergen | Burlington | Camden |
Cape May | Cumberland | Essex | Gloucester |
Hudson | Hunterdon | Mercer | Middlesex |
Monmouth | Morris | Ocean | Passaic |
Salem | Somerset | Sussex | Union |
Warren |