Bergen County is the most populous county in the U.S. state of New Jersey. Located in the Gateway Region at the northeastern corner of New Jersey, Bergen County and its many inner suburbs constitute a highly developed part of the New York City metropolitan area, bordering the Hudson River; the George Washington Bridge, which crosses the Hudson, connects Bergen County with Manhattan. The county is part of the North Jersey region of the state.
As of the 2020 United States census, the county's population was 955,732, its highest decennial count ever and an increase of 50,616 (+5.6%) from the 905,116 recorded at the 2010 census, which in turn reflected an increase of 20,998 (2.4%) from the 884,118 counted in the 2000 census. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 977,026, an increase of 21,294 (+2.2%) from the 2020 decennial census.
The county is divided into 70 municipalities, the most of any county in New Jersey, made up of 56 boroughs, nine townships, three cities, and two villages. Its most populous place, with 46,030 residents as of the 2020 census, is Hackensack, which is also its county seat. Mahwah covers the largest area of any municipality, at 26.19 square miles (67.8 km2).
Bergen County is one of the largest commercial hubs in both New Jersey and the United States, generating over $6 billion in annual revenues from retailers in Paramus alone, despite blue laws keeping most stores in the county and especially Paramus itself (which has even stricter blue laws than the rest of the county) open only six days per week. The county is one of the wealthiest counties in the United States, with a median household income of $109,497 (compared to $89,703 in New Jersey and $69,021 nationwide) and a per capita income of $55,710 (vs. $46,691 in the state and $37,638 in the U.S.) as of the 2017–2021 American Community Survey. Bergen County has some of the highest home prices in the United States, with the median sale price approximately $900,000 as of 2025 and maximum prices in the tens of millions of dollars. The county's park system includes 21 parks covering more than 9,800 acres (4,000 ha).
Etymology
The origin of the name of Bergen County is a matter of debate. It is believed that the county is named after one of the earliest settlements, Bergen, in modern-day Hudson County, New Jersey. Several sources also attribute the name to Bergen, Norway, while others attribute it to Bergen op Zoom in the Netherlands. Some sources say that the name is derived from one of the earliest settlers of New Amsterdam (now New York City), Hans Hansen Bergen, a native of Norway, who arrived in New Netherland in 1633.
History
At the time of first European contact, Bergen County was inhabited by Native American people, particularly the Lenape Nation, whose subgroups included the Tappan, Hackensack, and Rumachenanck (later called the Haverstraw), as named by the Dutch colonists. Some of their descendants are included among the Ramapough Mountain Indians, recognized as a tribe by the state in 1980. Their ancestors had moved into the mountains to escape encroachment by Dutch and English colonists. Their descendants reside mostly in the northwest of the county, in nearby Passaic County and in Rockland County, New York, tracing their Lenape ancestry to speakers of the Munsee language, one of three major dialects of their language. Over the years, they absorbed other ethnicities by intermarriage.
In the 17th century, the Dutch considered the area comprising today's Bergen and Hudson counties as part of New Netherland, their colonial province of the Dutch Republic. The Dutch claimed it after Henry Hudson (sailing for the Dutch East India Company) explored Newark Bay and anchored his ship at Weehawken Cove in 1609. From an early date, the Dutch began to import African slaves to fill their labor needs. Bergen County eventually was the largest slaveholding county in the state, with nearly 20% of its population consisting of slaves in 1800. The African slaves were used for labor at the ports to support shipping, as well as for domestic servants, trades, and farm labor.
Early settlement attempts by the Dutch colonists included Pavonia (1633), Vriessendael (1640), and Achter Col (1642), but the Native Americans repelled these settlements in Kieft's War (1643–1645) and the Peach War (1655). European settlers returned to the western shores of the Hudson River in the 1660 formation of Bergen Township (now part of Jersey City, New Jersey), which would become one of the earliest permanent European settlements in present-day New Jersey.
During the Second Anglo-Dutch War, on August 27, 1664, New Amsterdam's governor Peter Stuyvesant surrendered to the English Navy. The English organized the Province of New Jersey in 1665, later splitting the territory into East Jersey and West Jersey in 1674. On November 30, 1675, the settlement Bergen and surrounding plantations and settlements were called Bergen County in an act passed by the province's General Assembly. In 1683, Bergen (along with the three other original counties of East Jersey) was officially recognized as an independent county by the Provincial Assembly.
Initially, Bergen County comprised only the land between the Hudson River and the Hackensack River, extending north to the border between East Jersey and New York. In January 1709, the boundaries were extended to include all of the current territory of Hudson County (formed in 1840) and portions of the current territory of Passaic County (formed in 1837). The 1709 borders were described as follows:
"Beginning at Constable's Hook, so along the bay and Hudson's River to the partition point between New Jersey and the province of New York; along this line and the line between East and West Jersey† to the Pequaneck River; down the Pequaneck and Passaic Rivers to the sound; and so following the sound to Constable's Hook the place of beginning."
† The line between East and West Jersey here referred to is not the line finally adopted and known as the Lawrence line, which was run by John Lawrence in September and October 1743. It was the compromise line agreed upon between Governors Daniel Coxe and Robert Barclay in 1682, which ran a little north of Morristown to the Passaic River; thence up the Pequaneck to forty-one degrees of north latitude; and thence by a straight line due east to the New York State line. This line being afterward objected to by the East Jersey proprietors, the latter procured the running of the Lawrence line.
Bergen was the location of several battles and troop movements during the American Revolutionary War. Fort Lee's location on the bluffs of the New Jersey Palisades, opposite Fort Washington in Manhattan, made it a strategic position during the war. In November 1776, the Battle of Fort Lee took place as part of a British plan to capture George Washington and to resoundingly defeat the Continental Army, whose forces were divided and located in Fort Lee and Hackensack. After abandoning the defenses in Fort Lee and leaving behind considerable supplies, the Continental forces staged a hasty retreat through present-day Englewood, Teaneck, and Bergenfield, and across the Hackensack River at New Bridge Landing, one of the few sites where the river was crossed by a bridge. They destroyed the bridge to delay the British assault on Washington's headquarters in the village of Hackensack. The next day, George Washington retreated to Newark and left Hackensack via Polifly Road. British forces pursued, and Washington continued to retreat across New Jersey. The retreat allowed American forces to escape capture and regroup for subsequent successes against the British elsewhere in New Jersey later that winter.
Soon after the Battle of Princeton in January 1777, British forces realized that they were not able to spread themselves thin across New Jersey. Local militia retook Hackensack and the rest of Bergen County. Bergen County saw skirmishes throughout the war as armies from both sides maneuvered across the countryside.
The Baylor Massacre took place in 1778 in River Vale, resulting in severe losses for the Continentals.
In 1837, Passaic County was formed from parts of Bergen and Essex counties. In 1840, Hudson County was formed from Bergen. These two divisions took roughly 13,000 residents (nearly half of the previous population) from the county's rolls.
In 1852, the Erie Railroad began operating major rail services from Jersey City on the Hudson River to points north and west via leased right-of-way in the county. This became known as the Erie Main Line, and is still in use for passenger service today. The Erie later leased two other railroads built in the 1850s and 1860s, later known as the Pascack Valley Line and the Northern Branch, and in 1881 built a cutoff, now the Bergen County Line. There were two other rail lines in the county, ultimately known as the West Shore Railroad and the New York, Susquehanna, and Western.
In 1894, state law was changed to allow easy formation of municipalities with the borough form of government. This led to the "boroughitis" phenomenon, in which many new municipalities were created in a span of a few years. There were 26 boroughs that were formed in the county in 1894 alone, with two more boroughs (and one new township) formed in 1895. Ultimately 56 boroughs were incorporated in Bergen County, the highest number for any county in New Jersey.
On January 11, 1917, the Kingsland explosion took place at a munitions factory in what is today Lyndhurst. The explosion is believed to have been an act of sabotage by German agents, as the munitions in question were destined for Russia, part of the U.S.'s effort to supply allies before entrance into World War I. After the U.S. entry into the war in April 1917, Camp Merritt was created in eastern Bergen County for troop staging. Beginning operations in August 1917, it housed 50,000 soldiers at a time, staging them for deployment to Europe via Hoboken. Camp Merritt was decommissioned in November 1919.
The George Washington Bridge was completed in 1931, linking Fort Lee to Manhattan. This connection spurred rapid development in the post-World War II era, developing much of the county to suburban levels. Two lanes were added to the upper level in 1946 and a second deck of traffic on the bridge was completed in 1962, expanding its capacity to becoming the world's only 14-lane suspension bridge. The bridge is the world's busiest motor vehicle bridge, carrying 104 million vehicles in 2019.
In 1955, the United States Army established a Nike Missile station at Campgaw Mountain (in the west of the county) for the defense of the New York Metropolitan Area from strategic bombers. In 1959, the site was upgraded to house Nike-Hercules Missiles with increased range, speed, and payload characteristics. The missile site closed in June 1971.
Geography
Bergen County is located at the northeastern corner of the state of New Jersey and is bordered by Rockland County, New York, to the north; by Manhattan and the Bronx in New York City, as well as by Westchester County, New York, across the Hudson River to the east; and within New Jersey, by Hudson County as well as a small border with Essex County to the south, and by Passaic County to the west.
According to the U.S. Census Bureau, as of the 2020 Census, the county had a total area of 246.45 square miles (638.3 km2), of which 232.79 square miles (602.9 km2) was land (94.5%) and 13.66 square miles (35.4 km2) was water (5.5%).
Bergen County's highest elevation is Bald Mountain near the New York state line in Mahwah, at 1,164 feet (355 m) above sea level. The county's lowest point is sea level, along the Hudson River, which in this region is a tidal estuary.
The sharp cliffs of the New Jersey Palisades lift much of the eastern boundary of the county up from the Hudson River. The relief becomes less pronounced across the middle section of the county, much of it being located in the Hackensack River valley or the Pascack Valley. In the northwestern portion of the county, Bergen County becomes hilly again and shares the Ramapo Mountains with Rockland County, New York.
The damming of the Hackensack River and a tributary, the Pascack Brook, produced three reservoirs in the county, Woodcliff Lake Reservoir (which impounds one billion gallons of water), Lake Tappan (3.5 billion gallons), and Oradell Reservoir, which allows United Water to provide drinking water to 750,000 residents of North Jersey, mostly in Bergen and Hudson counties. The Hackensack River drains the eastern portion of the county through the New Jersey Meadowlands, a wetlands area in the southern portion of the county. The central portion is drained by the Saddle River and the western portion is drained by the Ramapo River. Both of these are tributaries of the Passaic River, which forms a section of the southwestern border of the county.
Climate
Southeastern Bergen County lies at the edge of the humid subtropical climate zone (Cfa) according to the Köppen climate classification because its coldest month (January) averages above 26.6 °F (−3.0 °C). In part due to Bergen's coastal location, its lower elevation, and the partial shielding of the county from colder air by the three ridges of the Watchung Mountains as well as by the higher Appalachians, the climate of Bergen County is milder than in New Jersey counties further inland such as Sussex County. Bergen County has a moderately sunny climate, averaging between 2,400 and 2,800 hours of sunshine annually.
In recent years, average temperatures in the county seat of Hackensack have ranged from a low of 19 °F (−7 °C) in January to a high of 86 °F (30 °C) in July, although a record low of −15 °F (−26 °C) was recorded in February 1934 and a record high of 106 °F (41 °C) was recorded in July 1936. Average monthly precipitation ranged from 3.21 inches (82 mm) in February to 4.60 inches (117 mm) in July.
Average monthly temperatures in Mahwah (measured at the interchange of Route 17 and MacArthur Boulevard) range from 28.5 °F (−1.9 °C) in January to 73.8 °F (23.2 °C) in July. Using the 32 °F (0 °C) January isotherm, most of Bergen has a hot-summer humid continental climate (Dfa) except for higher areas in the Ramapo Mountains, which are Dfb, and along the Hudson River from Fort Lee and southward, where Cfa exists.
Demographics
The county hosts one of the largest population of Circassian Americans.
2020 census
As of the 2020 United States census, the county had 955,732 people, 350,664 households, and 242,272 families. The population density was 3,900 inhabitants per square mile (1,505.8/km2). There were 367,383 housing units at an average density of 1,576 per square mile (608.5/km2). Among the housing units, 4.6% were vacant, 63.1% of occupied units were owner-occupied, and 36.9% were renter-occupied, with a homeowner vacancy rate of 1.2% and a rental vacancy rate of 4.5%. About 99.9% of residents lived in urban areas, while 0.1% lived in rural areas.
The county racial makeup was 56.9% White, 5.7% Black or African American, 0.5% American Indian and Alaska Native, 16.6% Asian, 0.0% Native Hawaiian and Pacific Islander, 10.1% from some other race, and 10.2% from two or more races. Hispanic or Latino residents of any race comprised 21.4% of the population.
There were 350,664 households, of which 32.5% had children under the age of 18 living with them, 57.1% were married couples living together, 25.9% had a female householder with no spouse or partner present, 13.9% had a male householder with no wife present, and 29.5% were non-families. About 24.1% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older. The average household size was 3.18 and the average family size was 3.25.
The median age was 42.0 years. About 21.0% of the county's population was under age 18, 8.0% was from age 18 to 24, 36.7% was from age 25 to 44, and 17.7% was age 65 or older. For every 100 females there were 93.4 males, and for every 100 females age 18 and over there were 90.6 males age 18 and over.
The median household income was $108,827, and the median family income was $122,981. About 5.6% of the population were below the poverty line, including 7.4% of those under age 18 and 7.7% of those age 65 or over.
The most reported ancestries were Italian (15.8%), Irish (12.2%), German (8.7%), Korean (6.9%), Polish (5.3%), and English (4.9%).
Racial and ethnic composition
2010 census
The 2010 United States census counted 905,116 people, 335,730 households, and 238,704 families in the county. The population density was 3,884.5 per square mile (1,499.8/km2). There were 352,388 housing units at an average density of 1,512.3 per square mile (583.9/km2). The racial makeup was 71.89% (650,703) White, 5.80% (52,473) Black or African American, 0.23% (2,061) Native American, 14.51% (131,329) Asian, 0.03% (229) Pacific Islander, 5.04% (45,611) from other races, and 2.51% (22,710) from two or more races. Hispanic or Latino residents of any race were 16.05% (145,281) of the population.
Of the 335,730 households, 32% had children under the age of 18; 56.1% were married couples living together; 10.9% had a female householder with no husband present and 28.9% were non-families. Of all households, 24.6% were made up of individuals and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.2.
22.6% of the population was under the age of 18, 7.4% was from 18 to 24, 25.9% from 25 to 44, 29% from 45 to 64, and 15.1% was 65 years of age or older. The median age was 41.1 years. For every 100 females, the population had 92.9 males. For every 100 females ages 18 and older there were 89.8 males.
Community diversity
Given its location as a suburban extension of Manhattan across the George Washington Bridge, Bergen County has evolved a globally cosmopolitan ambience of its own, demonstrating a robust and growing demographic and cultural diversity with respect to metrics including nationality, religion, race, and domiciliary partnership. South Korea, Poland, and India are the three most common nations of birth for foreign-born Bergen County residents.
Italian American
Italian Americans have long had a significant presence in Bergen County; in fact, Italian is the most commonly identified first ancestry among Bergen residents (18.5%), with 168,974 Bergen residents were recorded as being of Italian heritage in the 2013 American Community Survey.
To this day, many residents of the Meadowlands communities in the county's south are of Italian descent, most notably in South Hackensack (36.3%), Lyndhurst (33.8%), Carlstadt (31.2%), Wood-Ridge (30.9%) and Hasbrouck Heights (30.8%). Saddle Brook (29.8%), Lodi (29.4%), Moonachie (28.5%), Garfield, Hackensack, and the southeastern Bergen towns were Italian American strongholds for decades, but their Italo-American demographics have diminished in recent years as more recent immigrants have taken their place. At the same time, the Italian American population has grown in many of the communities in the northern half of the county, including Franklin Lakes, Ramsey, Montvale, and Woodcliff Lake.
Latin American
The diverse Hispanic and Latin American population in Bergen is growing in many areas of the county but is especially concentrated in a handful of municipalities, including Fairview (37.1%), Hackensack (25.9%), Ridgefield Park (22.2%), Englewood (21.8%), Bogota (21.3%), Garfield (20.1%), Cliffside Park (18.2%), Lodi (18.0%), and Bergenfield (17.0%). Traditionally, many of the Latino residents were of Colombian and Cuban ancestry, although that has been changing in recent years. Englewood's Colombian community is the largest in Bergen County and among the top ten by percent of population in the United States (7.17%); Hackensack, Fairview, Bergenfield, Bogota, and Lodi also have notable populations. The Cuban population is largest in Fairview, Ridgefield Park, Ridgefield, and Bogota, although the Cuban community is much bigger in Hudson County to the south. Since 2000, an increasing number of immigrants from other countries (including Peru, Mexico, Guatemala, El Salvador, the Dominican Republic, Ecuador, and Chile) as well as from the U.S. territory of Puerto Rico have entered the county. The diverse backgrounds of the local Latino community are best exemplified in Fairview, where 10% of the overall population hails from Central America, 7% from South America, and 9% from other Latin American countries, mainly those in the Caribbean. The borough of Fairview has the highest percentage of people of Salvadoran and Salvadoran American ancestry in the county, 12.4%. Hackensack has the highest percentage of people of Ecuadorian and Ecuadorian American ancestry in the county, 10.01%, with a total of approximately 4,500 living within city limits. Overall, Bergen County's Latino population has demonstrated a robust increase recently, growing from 145,281 as of the 2010 census count to an estimated 165,442 as of 2013.
Western European American
Irish Americans and German Americans are the next largest individual ethnic groups in Bergen County, numbering 115,914 (12.7% of the county's total population) and 80,288 (8.8%) respectively in 2013. As is the case with Italian Americans, these two groups developed sizable enclaves long ago and are now well established in all areas of the county. In 2023, Waldwick (30.43%), Ho-Ho-Kus (26.72%), and Hillsdale (24.94%) were reported as having the highest percentages of Irish American residents in the county. The Council of Irish Associations of Greater Bergen County, based in Bergenfield, has hosted an annual Saint Patrick's Day parade in the county since 1982.
Jewish American
Bergen County is home to the largest Jewish population in New Jersey. Many municipalities in the county are home to a significant number of Jewish Americans, including Fair Lawn, Teaneck, Tenafly, Closter, Englewood, Englewood Cliffs, Fort Lee, Bergenfield, Woodcliff Lake, Paramus, and Franklin Lakes. Teaneck, Fair Lawn, Englewood, and Bergenfield in particular have become havens for Bergen County's growing Orthodox Jewish communities, with a rising number of synagogues as well as supermarkets and restaurants offering kosher foods. The largest Israeli American communities in Bergen County were in Fair Lawn (2.5%), Closter (1.4%), and Tenafly (1.3%) in 2000, representing three of the four largest in the state. Altogether, 83,700 Bergen residents identified themselves as being of Jewish heritage in 2000, a number expected to show an increase per a 2014 survey of Jews in the county. The Jewish Federation of Northern New Jersey is based in Paramus.
Korean American
South Koreans constituted the most prevalent foreign-born nationality in Bergen County, which was home to all of the nation's top ten municipalities by percentage of Korean population in 2010.