One of the original 13 colonies, New Jersey played a pivotal role during the American Revolution and later became an industrial powerhouse. It has 21 counties.
10 Largest Counties in New Jersey
1. Bergen County
County Facts:
- Population: Approximately 955,000
- Area Codes: 201, 551
- Zip Codes: 07010–07699
- County Seat: Hackensack
Geography and History:
Bergen County is located in the northeastern corner of New Jersey and spans 247 square miles. It is bordered by the Hudson River to the east and the Ramapo Mountains to the northwest. The county is a mix of suburban and urban areas, with some green spaces and parks, such as the Palisades Interstate Park, offering stunning views of the Hudson River. The climate is typical of the northeastern U.S., with cold winters and warm summers.
Founded in 1683, Bergen County is the most populous county in New Jersey. It was one of the original four counties in the state and played a significant role in the Revolutionary War, especially with George Washington’s retreat through the region. Over the centuries, Bergen County developed into a suburban extension of New York City, with close proximity to Manhattan fueling its growth. Today, Bergen is a prosperous and diverse area, known for its high standard of living, thriving retail, and proximity to major highways and bridges.
Colleges and Universities:
- Bergen Community College: One of New Jersey’s largest community colleges, offering associate degrees and professional certifications in fields like healthcare, business, and the arts.
- Fairleigh Dickinson University (Teaneck Campus): A private university known for its business, liberal arts, and health sciences programs.
- Felician University: A private Catholic institution offering programs in nursing, education, business, and the liberal arts.
- Ramapo College of New Jersey: A public liberal arts college offering undergraduate and graduate degrees in business, science, and the humanities.
Major Landmarks:
Bergen County is home to Palisades Interstate Park, which provides scenic overlooks of the Hudson River and hiking trails. The George Washington Bridge connects Bergen County to Manhattan and is a key transportation hub. Bergen County Zoo in Paramus is a popular family destination. Historic New Bridge Landing is a Revolutionary War site featuring preserved buildings and reenactments. The Garden State Plaza in Paramus is one of the largest shopping malls in the U.S., attracting shoppers from across the region.
2. Middlesex County
County Facts:
- Population: Approximately 863,000
- Area Codes: 732, 848, 908
- Zip Codes: 07001–08989
- County Seat: New Brunswick
Geography and History:
Middlesex County is located in central New Jersey and covers 322 square miles. It is bordered by the Raritan River and Raritan Bay, with a landscape of rolling hills and suburban developments. The county is a mix of urban centers, like New Brunswick and Edison, and suburban neighborhoods. The climate is temperate, with cold winters and warm summers.
Middlesex County was established in 1683 and played an important role in early American history, particularly during the Revolutionary War. The county has long been a transportation and industrial hub due to its central location between New York City and Philadelphia. New Brunswick, the county seat, became a center for higher education and healthcare, largely due to Rutgers University and the presence of major medical facilities. Today, Middlesex County is known for its diverse population, thriving economy, and strategic location along major transportation routes.
Colleges and Universities:
- Rutgers University (New Brunswick Campus): One of the leading public research universities in the U.S., offering a wide range of undergraduate, graduate, and doctoral programs in fields such as business, engineering, and the arts.
- Middlesex College: A public community college offering associate degrees and professional certificates in areas like healthcare, information technology, and business.
- Princeton University (Nearby): Located in neighboring Mercer County, Princeton serves many students from Middlesex County, with programs in the humanities, sciences, and engineering.
- University of Medicine and Dentistry of New Jersey (UMDNJ): A major medical school and healthcare institution now integrated with Rutgers University.
Major Landmarks:
Middlesex County is home to Rutgers Gardens, a 180-acre botanical garden offering walking trails and educational programs. Edison Memorial Tower in Menlo Park honors the work of Thomas Edison, who had his famous invention laboratory in the area. Roosevelt Park in Edison offers outdoor recreation, including a scenic lake and an outdoor theater. The State Theatre New Jersey in New Brunswick hosts concerts, plays, and performances throughout the year. The Cornelius Low House in Piscataway is a historic museum that showcases colonial life in the region.
3. Essex County
County Facts:
- Population: Approximately 863,000
- Area Codes: 973, 862
- Zip Codes: 07003–07199
- County Seat: Newark
Geography and History:
Essex County is located in northeastern New Jersey, covering 126 square miles. The county is a densely populated urban area, with Newark as the largest city and economic center. The Passaic River runs through the county, and there are pockets of parkland such as South Mountain Reservation. The climate is temperate, with four distinct seasons.
Essex County was established in 1683 and named after the English county of Essex. Newark, the county seat, developed into a major industrial and transportation hub in the 19th century due to its proximity to New York City and its access to major railways and ports. Over time, the county became a center for education, healthcare, and commerce. Today, Essex County remains one of the most urbanized areas in New Jersey, with a strong focus on business, culture, and higher education.
Colleges and Universities:
- Rutgers University (Newark Campus): A major public research university offering programs in law, business, criminal justice, and the sciences.
- New Jersey Institute of Technology (NJIT): A public polytechnic university known for its engineering, architecture, and computer science programs.
- Seton Hall University: A private Catholic university offering undergraduate and graduate programs in business, law, healthcare, and the liberal arts.
- Essex County College: Provides associate degrees and certifications in fields like healthcare, criminal justice, and business.
Major Landmarks:
Essex County is home to Branch Brook Park, famous for its annual Cherry Blossom Festival. The Newark Museum of Art features extensive collections of American and contemporary art. The Prudential Center in downtown Newark hosts concerts, sports events, and is home to the NHL’s New Jersey Devils. Thomas Edison National Historical Park in West Orange preserves the inventor’s laboratory and home. South Mountain Reservation offers hiking and scenic views, while Turtle Back Zoo is a popular family attraction.
4. Hudson County
County Facts:
- Population: Approximately 724,000
- Area Codes: 201, 551
- Zip Codes: 07002–07399
- County Seat: Jersey City
Geography and History:
Hudson County is located in northeastern New Jersey, covering just 62 square miles, making it the smallest county by land area. It is bordered by the Hudson River and Upper New York Bay, with views of the Manhattan skyline. The county is highly urbanized, featuring waterfront cities like Jersey City and Hoboken. The climate is humid continental, with cold winters and warm, humid summers.
Hudson County was established in 1840 and quickly developed as a major transportation hub due to its strategic location across the Hudson River from New York City. The county has long been a center for shipping, manufacturing, and industry, though it has shifted toward finance, real estate, and technology in recent decades. Jersey City, the county seat, is now a major financial and cultural center, known for its rapid growth and development.
Colleges and Universities:
- New Jersey City University (NJCU): A public university offering programs in education, business, and the arts, with a strong focus on community engagement.
- Stevens Institute of Technology: A private research university in Hoboken known for its engineering, technology, and business programs.
- Hudson County Community College (HCCC): Provides associate degrees and certifications in fields such as healthcare, technology, and the culinary arts.
- Saint Peter’s University: A private Jesuit university in Jersey City offering programs in business, education, and the liberal arts.
Major Landmarks:
Hudson County is home to Liberty State Park, offering stunning views of the Statue of Liberty and Ellis Island, with ferry services to both landmarks. Hoboken’s Pier A Park provides waterfront recreation with views of the Manhattan skyline. Liberty Science Center offers interactive exhibits on science and technology. The Loew’s Jersey Theatre in Jersey City is a historic movie palace that now hosts concerts and cultural events. Hamilton Park and Van Vorst Park are popular green spaces in the heart of Jersey City.
5. Monmouth County
County Facts:
- Population: Approximately 618,000
- Area Codes: 732, 848
- Zip Codes: 07701–08535
- County Seat: Freehold
Geography and History:
Monmouth County is located in central New Jersey, covering 665 square miles. The county features a mix of suburban communities, rural areas, and a scenic coastline along the Jersey Shore. The Navesink and Shrewsbury Rivers run through the area, providing water-based recreation. The climate is humid, with warm summers and cold winters.
Monmouth County was established in 1675 and played an important role in the early colonial period, as well as during the Revolutionary War, particularly at the Battle of Monmouth. Over time, the county developed into a popular vacation destination, especially along the Jersey Shore, and later became a prosperous suburban region with a mix of agriculture, retail, and technology industries. Today, Monmouth County remains one of the most desirable places to live in New Jersey.
Colleges and Universities:
- Monmouth University: A private university located in West Long Branch, offering programs in business, education, and health sciences, known for its beautiful coastal campus.
- Brookdale Community College: A public community college offering associate degrees and professional certifications in healthcare, business, and the arts.
- Georgian Court University: A private Catholic university located nearby in Lakewood, offering undergraduate and graduate programs in education, psychology, and business.
- Rutgers University (New Brunswick): Many Monmouth County residents attend Rutgers University, taking advantage of its proximity for degrees in law, business, engineering, and other fields.
Major Landmarks:
Monmouth County is home to Sandy Hook, a national recreation area offering beaches, hiking trails, and historic sites like Fort Hancock. Monmouth Battlefield State Park preserves the site of the famous Revolutionary War battle. Asbury Park is known for its vibrant music scene, with venues like The Stone Pony playing a key role in launching the careers of artists like Bruce Springsteen. Freehold Raceway is one of the oldest harness racing tracks in the U.S. The Count Basie Center for the Arts in Red Bank hosts concerts, plays, and cultural events throughout the year.
6. Ocean County
County Facts:
- Population: Approximately 637,000
- Area Codes: 609, 732
- Zip Codes: 08005–08759
- County Seat: Toms River
Geography and History:
Ocean County is located in southeastern New Jersey, covering 915 square miles, making it the state’s largest county by land area. The county is defined by its 44 miles of coastline along the Atlantic Ocean, as well as the Pine Barrens, a vast forested area. The climate is coastal, with milder winters and warm summers.
Founded in 1850, Ocean County has a long history as a vacation destination, with its beaches and boardwalks attracting visitors from across the northeastern U.S. during the summer. The county has also played a role in New Jersey’s maritime history, from shipbuilding to fishing. In the 20th century, Ocean County experienced rapid population growth, particularly in areas like Toms River, as more people sought homes near the shore. Today, tourism and retirement communities drive much of the county’s economy.
Colleges and Universities:
- Ocean County College: A public community college offering associate degrees and professional certifications in healthcare, business, and liberal arts.
- Georgian Court University: Located nearby in Lakewood, this private Catholic university offers programs in psychology, business, and education.
- Rutgers University (New Brunswick): Many Ocean County residents commute to Rutgers University for undergraduate and graduate programs in law, business, and engineering.
- Stockton University (Galloway Township): Located nearby, Stockton offers degrees in environmental science, education, and business, serving Ocean County residents.
Major Landmarks:
Ocean County is home to the famous Jersey Shore, with popular beach towns like Seaside Heights, Point Pleasant, and Long Beach Island offering boardwalks, amusement parks, and beaches. Island Beach State Park is a preserved barrier island offering untouched beaches and wildlife habitats. Tuckerton Seaport provides a glimpse into the county’s maritime history. Six Flags Great Adventure in Jackson is a major amusement park, home to some of the tallest roller coasters in the world. The Pine Barrens offers hiking and nature exploration in a unique forested landscape.
7. Passaic County
County Facts:
- Population: Approximately 524,000
- Area Codes: 973, 862
- Zip Codes: 07009–07544
- County Seat: Paterson
Geography and History:
Passaic County is located in northern New Jersey, covering 197 square miles. The county is known for its varied geography, including urban areas like Paterson, suburban communities, and natural features such as the Passaic River and the Ramapo Mountains. The climate is temperate, with cold winters and warm summers.
Founded in 1837, Passaic County developed as an industrial center in the 19th century, particularly in Paterson, which became known as the “Silk City” for its silk production. The Great Falls of the Passaic River provided the necessary power for mills and factories, making the area an early center of industry. Over time, the county diversified, with suburban areas growing around the cities, while Paterson remains an important cultural and economic hub. Today, Passaic County is known for its diverse population and rich industrial history.
Colleges and Universities:
- William Paterson University: A public university offering programs in business, education, nursing, and the arts, known for its strong emphasis on public service.
- Passaic County Community College: Provides associate degrees and certifications in fields like healthcare, business, and criminal justice.
- Montclair State University: Located nearby, Montclair State serves many Passaic County students with programs in education, business, and the sciences.
- Berkeley College (Woodland Park Campus): Offers career-focused programs in business, healthcare, and criminal justice, catering to working adults and non-traditional students.
Major Landmarks:
Passaic County is home to Paterson Great Falls National Historical Park, which preserves the historic industrial area around the Great Falls of the Passaic River. Lambert Castle, located in Garret Mountain Reservation, is a historic mansion offering scenic views and museum exhibits. High Mountain Reserve Park provides hiking trails and stunning views of the surrounding region. Yogi Berra Museum in nearby Montclair honors the life and career of the legendary baseball player and manager. The Passaic River offers opportunities for kayaking, fishing, and nature exploration.
8. Union County
County Facts:
- Population: Approximately 575,000
- Area Codes: 908
- Zip Codes: 07001–07974
- County Seat: Elizabeth
Geography and History:
Union County is located in northeastern New Jersey, covering 105 square miles. The county is a blend of urban and suburban areas, with cities like Elizabeth and Plainfield, as well as residential towns like Westfield and Summit. The Rahway River runs through the county, and there are several parks and green spaces. The climate is typical of the northeastern U.S., with cold winters and warm summers.
Founded in 1857, Union County was carved out of Essex County and developed into a major transportation and industrial hub due to its proximity to New York City. Elizabeth, the county seat, became a major port and manufacturing center in the 19th century. The county has a rich industrial history but has since transitioned to a more diversified economy, with strong sectors in healthcare, education, and retail. Union County is known for its accessibility to major highways, airports, and public transportation.
Colleges and Universities:
- Kean University: A public university offering undergraduate and graduate programs in business, education, the arts, and the sciences, with a strong focus on public service and education.
- Union County College: Offers associate degrees and certifications in healthcare, business, and technology, serving students throughout Union County.
- Seton Hall University: Located nearby in Essex County, Seton Hall serves many Union County students with its programs in law, healthcare, and business.
- Kean Ocean: A partnership between Kean University and Ocean County College, offering degree programs to Union County residents looking for flexible, distance-learning options.
Major Landmarks:
Union County is home to Liberty Hall Museum, the historic home of New Jersey’s first governor, William Livingston. Warinanco Park offers recreational facilities and scenic walking trails, while Nomahegan Park features a picturesque lake and nature trails. The Union Watersphere in Union is a distinctive landmark visible from miles around. The Rahway River Parkway connects several parks and recreational areas along the Rahway River. Boxwood Hall in Elizabeth is a historic site where George Washington stayed before his inauguration as the first president.
9. Camden County
County Facts:
- Population: Approximately 523,000
- Area Codes: 856
- Zip Codes: 08002–08110
- County Seat: Camden
Geography and History:
Camden County is located in southern New Jersey, covering 222 square miles. The county is part of the Delaware Valley metropolitan area, with Camden serving as an industrial and transportation hub along the Delaware River. The landscape is a mix of urban centers, suburban communities, and natural areas like the Pine Barrens. The climate is temperate, with cold winters and warm summers.
Camden County was established in 1844 and grew rapidly due to its proximity to Philadelphia and its strategic location along the Delaware River. Camden, the county seat, became a major industrial center, with shipbuilding, manufacturing, and transportation playing key roles in its development. Over time, suburban areas like Cherry Hill grew, while Camden itself experienced significant challenges related to industrial decline. Today, Camden County is working to revitalize its urban areas while continuing to expand its suburban communities.
Colleges and Universities:
- Rutgers University (Camden Campus): A public research university offering programs in law, business, and the arts, with a strong emphasis on civic engagement and public service.
- Camden County College: Provides associate degrees and certifications in healthcare, business, and criminal justice, with campuses in Camden, Blackwood, and Cherry Hill.
- Rowan University: Located nearby in Glassboro, Rowan serves many Camden County students with its programs in education, business, and engineering.
- Cooper Medical School of Rowan University: Offers medical degrees and training in partnership with Cooper University Hospital in Camden.
Major Landmarks:
Camden County is home to the Adventure Aquarium on the Camden waterfront, offering exhibits on marine life and aquatic habitats. Battleship New Jersey, the most decorated battleship in U.S. naval history, is now a museum along the Delaware River. Wiggins Park offers outdoor concerts and scenic views of the Philadelphia skyline. Camden Children’s Garden provides family-friendly educational programs and exhibits. The Camden Waterfront features a variety of attractions, including BB&T Pavilion, a major concert venue.
10. Morris County
County Facts:
- Population: Approximately 496,000
- Area Codes: 973, 862
- Zip Codes: 07005–07999
- County Seat: Morristown
Geography and History:
Morris County is located in northern New Jersey and covers 481 square miles. The county features rolling hills, forests, lakes, and suburban developments, with the Rockaway River and the Jersey Highlands running through it. The climate is temperate, with cold winters and warm summers.
Morris County was established in 1739 and named after Colonel Lewis Morris, the first governor of New Jersey. The county played an important role in the American Revolution, with George Washington’s Continental Army spending two winters in Morristown. Over the centuries, Morris County evolved from a rural, agricultural area into a suburban and industrial region, particularly with the rise of the railroads. Today, Morris County is known for its high quality of life, strong economy, and proximity to both New York City and the rural Highlands.
Colleges and Universities:
- County College of Morris: A public community college offering associate degrees and certifications in fields like healthcare, business, and information technology.
- Drew University: A private liberal arts university in Madison known for its programs in the humanities, social sciences, and business.
- Fairleigh Dickinson University (Florham Campus): Offers undergraduate and graduate programs in business, psychology, healthcare, and the arts.
- Seton Hall University: Located nearby in Essex County, Seton Hall serves many Morris County students with its programs in law, healthcare, and the liberal arts.
Major Landmarks:
Morris County is home to Morristown National Historical Park, which includes Washington’s Headquarters and Jockey Hollow, sites critical to the Revolutionary War. The Frelinghuysen Arboretum offers beautiful gardens and walking trails. The Morris Museum features exhibits on art, science, and history, as well as an impressive collection of mechanical musical instruments. The Great Swamp National Wildlife Refuge provides a sanctuary for wildlife and a place for nature lovers to explore. Lewis Morris Park is a popular destination for hiking, biking, and picnicking.