Bergen County, New Jersey Municipalities
County Seat: Hackensack
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In the last decades of the 19th century, Bergen County, to a far greater extent than any other county in the state, began dividing its townships up into incorporated boroughs; this was chiefly due to the "boroughitis" phenomenon, triggered by a number of loopholes in state laws that allowed boroughs to levy lower taxes and send more members to the county's board of freeholders. There was a 10-year period in which many of Bergen County's townships disappeared into the patchwork of boroughs that exist today, before the state laws governing municipal incorporation were changed.
- Allendale (Borough)
- Alpine (Borough)
- Bergenfield (Borough)
- Bogota (Borough)
- Carlstadt (Borough)
- Cliffside Park (Borough)
- Closter (Borough)
- Cresskill (Borough)
- Demarest (Borough)
- Dumont (Borough)
- East Rutherford (Borough)
- Edgewater (Borough)
- Elmwood Park (Borough)
- Emerson (Borough)
- Englewood (City)
- Englewood Cliffs (Borough)
- Fair Lawn (Borough)
- Fairview (Borough)
- Fort Lee (Borough)
- Franklin Lakes (Borough)
- Garfield (City)
- Glen Rock (Borough)
- Hackensack (City)
- Harrington Park (Borough)
- Hasbrouck Heights (Borough)
- Haworth (Borough)
- Hillsdale (Borough)
- Ho-Ho-Kus (Borough)
- Leonia (Borough)
- Little Ferry (Borough)
- Lodi (Borough)
- Lyndhurst (Township)
- Mahwah (Township)
- Maywood (Borough)
- Midland Park (Borough)
- Montvale (Borough)
- Moonachie (Borough)
- New Milford (Borough)
- North Arlington (Borough)
- Northvale (Borough)
- Norwood (Borough)
- Oakland (Borough)
- Old Tappan (Borough)
- Oradell (Borough)
- Palisades Park (Borough)
- Paramus (Borough)
- Park Ridge (Borough)
- Ramsey (Borough)
- Ridgefield (Borough)
- Ridgefield Park (Village)
- Ridgewood (Village)
- River Edge (Borough)
- River Vale (Township)
- Rochelle Park (Township)
- Rockleigh (Borough)
- Rutherford (Borough)
- Saddle Brook (Township)
- Saddle River (Borough)
- South Hackensack (Township)
- Teaneck (Township)
- Tenafly (Borough)
- Teterboro (Borough)
- Upper Saddle River (Borough)
- Waldwick (Borough)
- Wallington (Borough)
- Washington Township (Township)
- Westwood (Borough)
- Woodcliff Lake (Borough)
- Wood-Ridge (Borough)
- Wyckoff (Township)
Historical municipalities
Over the history of the county, there have been various municipality secessions, annexations, and renamings. The following is a partial list of former municipalities.
- Bergen Township, 1683–1862
- Bergen Township, 1893–1902
- Boiling Springs Township, 1885
- Eastwood Borough, 1894–1896
- Englewood Township, 1871–1899
- Franklin Township, 1771–1926
- Hackensack Township, 1693
- Harrington Township, 1775–1916
- Hohokus Township, 1849
- Lodi Township, 1825–1935
- Midland Township, 1871
- New Barbadoes Township, 1710–1921
- Orvil Township, 1886–1919
- Overpeck Township, 1897–1938
- Palisades Township, 1871–1922
- Ridgefield Township, 1871
- Ridgewood Township, 1876
- Saddle River Township, 1716–1955
- Union Township, 1852