1 ] Motto(s) : Liberty and prosperity Official language(s) None Demonym New Jerseyan, [ 2 ] New Jerseyite [ 3 ] Capital Trenton Largest city Newark Area   Ranked 47th in the US  - Total 8,721 sq mi (22,608 km 2 )  - Width 70 miles (110 km)  - Length 150 miles (240 km)  - % water 14.9  - Latitude 38°?56' N