Essex County

Belleville 'town Township' [1839: Township to 1910 (coterminous city within, 1874-1876), town 1910-1981]
Bloomfield 'town Township' [1812: Township to 1900, town 1900-1981]
Caldwell borough [1892: borough to 1981, 'borough Township', 1981-1995]
Cedar Grove Township [1892: Verona to 1908]
East Orange city [1863: Township to 1899]
Essex Fells borough [1902: borough to 1981, 'borough Township', 1981-1992]
Fairfield 'borough Township' [1798: Caldwell Township to 1963, Fairfield Township 1963-1964, borough 1964-1980s , mixed status from 1980s]
Glen Ridge borough [1895: borough to 1981, 'borough Township' 1981-1993]
Irvington 'town Township' [1874: village to 1898, town 1898-1982]
Livingston Township [1813]
Maplewood Township [1861: South Orange to 1922]
Millburn Township [1857]
Montclair 'town Township' [1868: Township to 1894, town 1894-1980s]
NEWARK city [1693: Township to 1836]- county courthouse
North Caldwell borough [1898: borough to 1982, 'borough Township' 1982-1992]
Nutley 'town Township' [1874: Franklin Township to 1902, Nutley town 1902-1981]
Orange 'city Township' [1806: Township to 1860, town 1860-1872, city 1872-1982]
Roseland borough [1908]
South Orange 'village Township' [1869: village to 1980s]
Verona 'borough Township' [1907: borough to 1981]
West Caldwell 'borough Township' [1904: borough to 1981]
West Orange 'town Township' [1862: Fairmount to 1863- Township to1900, town 1900-1980s]

Source:  New Jersey Localities: Civil Divisions and Municipalities; http://www.thegreenpapers.com/slg/localities.phtml?state=NJ