Cities and Towns in Somerset County, New Jersey
Founded in 1688, Somerset County is one of 21 counties in the state of New Jersey. Historically, Somerset County was formed from Middlesex County. The city of Somerville is the county seat. With FIPS code of 35, Somerset County has a population of 345,647 and area of 305 square miles (790 km²).
List of all cities in Somerset County, NJ alphabetically
| City/Town | Postal Code | Area Code |
| Basking Ridge, NJ | 07920 | 908 |
| 07939 | 908 | |
| Bedminster, NJ | 07921 | 908 |
| Belle Mead, NJ | 08502 | 908 |
| Bernardsville, NJ | 07924 | 908 |
| Blawenburg, NJ | 08504 | 609 |
| Bound Brook, NJ | 08805 | 732/848 |
| Branchburg, NJ | 08853 | 908 |
| 08876 | 908 | |
| Bridgewater, NJ | 08807 | 908 |
| East Millstone, NJ | 08873 | 732/848 |
| 08875 | 908 | |
| Far Hills, NJ | 07931 | 908 |
| Finderne, NJ | 08876 | 908 |
| Flagtown, NJ | 08821 | 908 |
| Franklin Park, NJ | 08823 | 908 |
| Franklin Township, NJ | 08873 | 732/848 |
| Gladstone, NJ | 07934 | 908 |
| Hillsborough, NJ | 08844 | 908 |
| Kingston, NJ | 08528 | 609 |
| Liberty Cor, NJ | 07938 | 908 |
| Liberty Corner, NJ | 07938 | 908 |
| Lyons, NJ | 07939 | 908 |
| Manville, NJ | 08835 | 908 |
| Martinsville, NJ | 08836 | 908 |
| Middlebush, NJ | 08873 | 732/848 |
| Millstone, NJ | 08844 | 908 |
| Montgomery, NJ | 08502 | 908 |
| 08558 | 609 | |
| Neshanic Station, NJ | 08853 | 908 |
| North Branch, NJ | 08876 | 908 |
| Peapack, NJ | 07977 | 908 |
| Plainfield, NJ | 07069 | 908 |
| Pluckemin, NJ | 07978 | 908 |
| Raritan, NJ | 08869 | 908 |
| Rocky Hill, NJ | 08553 | 609 |
| Skillman, NJ | 08558 | 609 |
| Somerset, NJ | 08873 | 732/848 |
| 08875 | 908 | |
| Somerville, NJ | 08876 | 908 |
| South Bound Brook, NJ | 08880 | 732/848 |
| South Branch, NJ | 08876 | 908 |
| Warren, NJ | 07059 | 908 |
| Watchung, NJ | 07069 | 908 |
| Zarepath, NJ | 08873 | 732/848 |
| Zarephath, NJ | 08890 | 732/848 |
Major Cities and Towns in Somerset County, New Jersey
Somerville
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 2.3 square miles
- Population: Approximately 12,000
- Zip Codes: 08876
- Latitude: 40.5663° N
- Longitude: 74.6095° W
Location and History
Somerville, the county seat of Somerset County, is located in central New Jersey. Originally settled in the early 18th century, it was incorporated as a borough in 1863. The town’s location, along the Raritan River and the meeting point of major roads, made it an ideal trading post and commercial center during the colonial period. Somerville was formally recognized as the county seat in 1800, and its economy grew as the region became an important agricultural and transportation hub. In the late 19th and early 20th centuries, the town developed further with the construction of railroads and industrial growth. As the county seat, Somerville became the focal point for government and judicial activities. Today, Somerville combines its rich history with a bustling downtown area, offering a vibrant blend of historic architecture, local businesses, and modern amenities. It is known for its convenient access to transportation networks, including major highways and NJ Transit rail lines, making it a popular destination for commuters to New York City.
Major Schools and Landmarks
Somerville is served by the Somerville Public Schools District, with Somerville High School offering a comprehensive range of academic, athletic, and extracurricular opportunities. The town’s historic landmarks include the Somerset County Courthouse, one of the oldest operational courthouses in New Jersey, and the Van Veghten House, a 1750s-era house that now serves as a museum. Somerville’s downtown district is also a key feature, with its historic buildings, charming boutiques, and restaurants. A focal point for local culture is the Somerville Theater, offering a variety of films and live performances. The nearby Duke Island Park provides ample green space for outdoor activities, including trails, sports fields, and picnic areas. The Somerville Historic District is another major landmark, with well-preserved 19th-century homes and buildings that offer a glimpse into the town’s past.
Bridgewater
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 32.4 square miles
- Population: Approximately 45,000
- Zip Codes: 08807, 08822
- Latitude: 40.5853° N
- Longitude: 74.5774° W
Location and History
Bridgewater is a township in central Somerset County, situated along the Raritan River. The area was originally settled in the late 17th century and was officially incorporated in 1798. The name “Bridgewater” comes from the township’s location near the bridge that spanned the Raritan River, providing access to the region’s growing trade routes. Bridgewater’s early economy was centered around agriculture, particularly farming and milling, but as transportation and industry grew in the 19th century, the township began to develop more rapidly. The arrival of the railroad in the 1830s helped connect Bridgewater to nearby cities like New York, fueling further growth and making it an important suburban community. By the mid-20th century, Bridgewater had transformed from a rural township into a prosperous suburban area. The township is known for its residential neighborhoods, excellent schools, and commercial centers, making it a desirable place to live.
Major Schools and Landmarks
Bridgewater is served by the Bridgewater-Raritan Regional School District, which includes Bridgewater-Raritan High School, known for its strong academic and athletic programs. The township also has several parks, including Washington Valley Park and the Duke Farms, which provides a combination of natural beauty and recreational opportunities such as hiking, cycling, and bird-watching. One of Bridgewater’s key landmarks is the Bridgewater Commons Mall, a major regional shopping center that attracts visitors from all over Somerset County. The historic Van Horne House, built in the early 18th century, is another significant site and serves as a museum that educates visitors about the area’s colonial history. Additionally, the Bridgewater-Raritan Library offers a range of educational and cultural programs for residents.
Franklin Township
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 34.9 square miles
- Population: Approximately 65,000
- Zip Codes: 08873, 08873
- Latitude: 40.5585° N
- Longitude: 74.5549° W
Location and History
Franklin Township, located in the southeastern part of Somerset County, is a township with a rich agricultural and industrial history. The township was first settled in the 17th century and incorporated in 1798. It was named in honor of Benjamin Franklin, reflecting the ideals of the era. Franklin’s location along the Raritan River and its proximity to the Delaware and Raritan Canal made it a key site for transportation and trade during the 19th century. The township experienced substantial growth during the industrial era, particularly in mining and ironworks. However, after World War II, Franklin Township saw a shift to residential development and suburbanization. Today, the township is known for its diverse population and a combination of suburban and rural environments. It is home to Rutgers University’s expansive Livingston Campus, as well as many parks and nature reserves.
Major Schools and Landmarks
Franklin Township is served by the Franklin Township Public Schools district, which includes Franklin High School, a well-regarded institution for its academic performance and sports teams. Key landmarks in Franklin include the historic Philipsburg Manor, a site that recalls the township’s agricultural past, and the Colonial Park, which features large open fields, a golf course, and a well-maintained garden. Another significant landmark is the Delaware and Raritan Canal State Park, which offers scenic views and opportunities for cycling, hiking, and fishing. Additionally, the Rutgers University Livingston Campus, home to multiple academic and research facilities, is a vital part of the township’s educational and cultural landscape. The township’s location near major highways, as well as its abundant green spaces, makes it an attractive destination for both residents and visitors.
Hillsborough
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 54.2 square miles
- Population: Approximately 40,000
- Zip Codes: 08844, 08853
- Latitude: 40.4990° N
- Longitude: 74.6160° W
Location and History
Hillsborough is a large township located in the western part of Somerset County, New Jersey. The township was originally settled in the early 18th century and was officially established in 1771. Its name is believed to be derived from the Earl of Hillsborough, a British politician during the colonial period. Hillsborough’s early economy was based on agriculture, with farming, orchards, and mills forming the backbone of the township’s industry. By the late 19th and early 20th centuries, the area became more suburbanized, and Hillsborough began to attract residents from nearby cities due to its scenic beauty, proximity to major highways, and excellent school system. The township grew rapidly in the second half of the 20th century, particularly after the construction of major transportation routes, making it one of Somerset County’s key suburban communities.
Major Schools and Landmarks
Hillsborough is served by the Hillsborough Township School District, with Hillsborough High School being a prominent institution in the area. The township also offers a number of recreational parks and open spaces, such as the Duke Island Park and the Hillsborough Municipal Complex, which includes sports fields and community gathering areas. One of the most notable landmarks in Hillsborough is the Van Horne Park, a preserved 18th-century farm that offers hiking and educational programs. The township is also home to the Sourland Mountain Preserve, which offers extensive hiking trails, diverse wildlife, and scenic views of the surrounding area. Hillsborough’s downtown area features a variety of local businesses, while the nearby Bridgewater Commons Mall offers residents access to major shopping centers and cultural events.
Watchung
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 5.5 square miles
- Population: Approximately 6,500
- Zip Codes: 07069
- Latitude: 40.6145° N
- Longitude: 74.4123° W
Location and History
Watchung is a small suburban township located in the western part of Somerset County, named after the Watchung Mountains that rise above the area. The township was first settled in the 18th century and was officially incorporated in 1926. Watchung’s name is derived from a Lenape Native American word meaning “high hills” or “mountain.” Historically, the area was agricultural, with farming and mills as the primary industries. However, in the 20th century, the area became more residential as it attracted families seeking a suburban lifestyle with easy access to New York City. Watchung is known for its scenic beauty, with large sections of preserved parkland, including parts of the Watchung Reservation. The township is also characterized by its elegant homes and quiet residential neighborhoods, offering a peaceful retreat from urban life.
Major Schools and Landmarks
Watchung is served by the Watchung Hills Regional School District, which includes Watchung Hills Regional High School. The township’s small size gives it a tight-knit community feel, with schools, parks, and recreational areas forming a central part of local life. Major landmarks include the Watchung Reservation, a large nature preserve with trails, picnic areas, and historical sites such as the Trailside Nature and Science Center. The Watchung Plaza Historic District is another key feature, home to a variety of local businesses and charming shops. Additionally, the town is known for its proximity to the Watchung Mountains, providing hiking and outdoor recreation opportunities, as well as scenic vistas of the surrounding areas.
