Cities and Towns in Warren County, New Jersey
Founded in 1824, Warren County is one of 21 counties in the state of New Jersey. Historically, Warren County was formed from Sussex County. The city of Belvidere is the county seat. With FIPS code of 41, Warren County has a population of 110,731 and area of 358 square miles (927 km²).
List of all cities in Warren County, NJ alphabetically
| City/Town | Postal Code | Area Code |
| Allamuchy, NJ | 07820 | 908 |
| Allamuchy Township, NJ | 07840 | 908 |
| Alpha, NJ | 08865 | 908 |
| Belvidere, NJ | 07823 | 908 |
| Blairstown, NJ | 07825 | 908 |
| Broadway, NJ | 08808 | 908 |
| Buttzville, NJ | 07829 | 908 |
| Changewater, NJ | 07831 | 908 |
| Columbia, NJ | 07832 | 908 |
| Delaware, NJ | 07833 | 908 |
| Delaware Park, NJ | 08865 | 908 |
| Great Meadows, NJ | 07838 | 908 |
| Hackettstown, NJ | 07840 | 908 |
| Hardwick, NJ | 07825 | 908 |
| Harmony Township, NJ | 08865 | 908 |
| Hope, NJ | 07844 | 908 |
| Johnsonburg, NJ | 07846 | 908 |
| Lopatcong, NJ | 08865 | 908 |
| Oxford, NJ | 07863 | 908 |
| Phillipsburg, NJ | 08865 | 908 |
| Port Murray, NJ | 07865 | 908 |
| Stewartsville, NJ | 08886 | 908 |
| Vienna, NJ | 07880 | 908 |
| Washington, NJ | 07882 | 908 |
Major Cities and Towns in Warren County, New Jersey
Hackettstown
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 2.4 square miles
- Population: Approximately 9,000
- Zip Codes: 07840
- Latitude: 40.8520° N
- Longitude: 75.0093° W
Location and History
Hackettstown is a town located in the western part of Warren County, New Jersey, nestled in the scenic foothills of the Appalachian Mountains. It was originally settled in the mid-18th century and incorporated as a town in 1853. Hackettstown’s early economy was based on agriculture, but it grew significantly in the 19th century as the Morris Canal, a vital transportation route, passed through the town. This encouraged industrial development, particularly in ironworks and manufacturing. The town’s location on the Musconetcong River further contributed to its commercial success. Over time, Hackettstown became a hub for regional trade and commerce. In the 20th century, Hackettstown became a more residential and commuter town, benefiting from its proximity to larger cities like Phillipsburg and Easton, Pennsylvania. The town’s historical significance is highlighted by its 19th-century architecture and its role in early American industry.
Major Schools and Landmarks
Hackettstown is home to Hackettstown High School, an educational institution known for its strong academics and sports programs. The town also features Warren County Community College, offering a range of higher education opportunities. Notable landmarks include the historic Train Station, built in the 19th century and still in use today, as well as the Morris Canal, which provides scenic walking trails and a glimpse into the area’s industrial past. The town is also home to the Centenary University campus, which plays a large role in the community. Outdoor enthusiasts can explore the nearby Allamuchy Mountain State Park, offering hiking, fishing, and wildlife viewing. Hackettstown’s charming downtown area is filled with locally-owned shops, eateries, and historical sites, preserving the character of the town while blending modern amenities.
Phillipsburg
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 2.7 square miles
- Population: Approximately 15,000
- Zip Codes: 08865
- Latitude: 40.6850° N
- Longitude: 75.1884° W
Location and History
Phillipsburg is located along the Delaware River, bordering Pennsylvania, and is one of the largest towns in Warren County. The area was first settled in the early 18th century, and Phillipsburg itself was incorporated in 1861. Its location at the confluence of the Delaware and Lehigh Rivers made it a critical transportation and trade center during the 19th century, especially with the development of the Lehigh Valley Railroad. The railroad facilitated the town’s growth, and Phillipsburg became a thriving industrial center, particularly known for iron and steel production. In the 20th century, the town’s economy diversified, but the decline of heavy industry led to a period of economic transition. Today, Phillipsburg is known as a small, family-friendly town with a growing suburban feel. Its location provides easy access to both the natural beauty of the Delaware River and larger metropolitan areas like New York City and Philadelphia.
Major Schools and Landmarks
Phillipsburg is served by the Phillipsburg School District, which includes Phillipsburg High School and several middle and elementary schools. The town also offers a variety of recreational activities at parks like Riverside Park and Lopatcong Park. One of the most prominent landmarks in Phillipsburg is the Phillipsburg Railroad Museum, which showcases the town’s historical connection to the railroad industry. The Delaware River offers outdoor recreation, such as boating, fishing, and hiking along the Delaware Canal Towpath. The town is also known for its annual events, such as the Phillipsburg Christmas Parade. Phillipsburg’s downtown features historic architecture and local businesses, and its proximity to the scenic Delaware Water Gap National Recreation Area provides residents and visitors with ample opportunities for outdoor adventures.
Belvidere
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 1.7 square miles
- Population: Approximately 2,600
- Zip Codes: 07823
- Latitude: 40.8761° N
- Longitude: 75.0502° W
Location and History
Belvidere is the county seat of Warren County, New Jersey, located along the Delaware River. It was settled in the late 18th century and incorporated in 1845. Historically, the town’s strategic location along the river made it an important transportation and commercial hub. In the 19th century, Belvidere became an important stop on the Delaware and Raritan Canal, facilitating trade and commerce. The town also had a thriving agricultural economy, as well as small industries like textile and iron production. Belvidere is known for its historic district, which features well-preserved 19th-century architecture. Over the years, the town has become a quiet residential community with a focus on preserving its historical heritage while offering modern amenities. Its proximity to larger cities like Phillipsburg and Easton, Pennsylvania, has helped the town maintain its small-town atmosphere while still being accessible to regional centers.
Major Schools and Landmarks
Belvidere is served by the Belvidere School District, which includes Belvidere High School. The town is also home to a number of parks and green spaces, including the scenic Riverside Park along the Delaware River, offering opportunities for fishing, boating, and picnicking. Belvidere’s historic district is one of its main attractions, with charming streets lined with 19th-century homes, churches, and public buildings. Notable landmarks include the Warren County Courthouse, an architectural gem that serves as a reminder of Belvidere’s role as the county seat. The town is also home to the Belvidere Bridge, a historic landmark that spans the Delaware River and connects Belvidere with Portland, Pennsylvania. The town hosts events like the annual Belvidere Day Festival, which celebrates the town’s history and community spirit.
Washington
Area, Population, Zip Codes, Latitude, and Longitude
- Area: 9.4 square miles
- Population: Approximately 1,200
- Zip Codes: 07882
- Latitude: 40.8001° N
- Longitude: 75.0182° W
Location and History
Washington is a small town located in the northernmost part of Warren County, New Jersey. It was established in the early 19th century, though the area was first settled much earlier. The town is named after George Washington and was incorporated in 1860. Washington was primarily an agricultural community for much of its history, with the surrounding fertile land supporting farms, orchards, and vineyards. The town saw limited industrial development in the 19th century, and its economy was mainly focused on local trade and farming. Over time, Washington has maintained its rural charm while serving as a quiet residential community. Its proximity to larger towns and cities, combined with its natural beauty, has made it an attractive place for those seeking a peaceful lifestyle in Warren County.
Major Schools and Landmarks
Washington is served by the Washington Township School District, with schools like Washington Township School for elementary grades. The town also boasts several parks and outdoor spaces, including the Washington Borough Park, which features sports fields and playgrounds for families. A major historical landmark is the Washington Memorial Park, which honors the town’s connection to the early American Revolution, as well as various structures dating back to the 19th century. Washington is also known for its proximity to the Delaware River, which offers opportunities for fishing and hiking. The town’s annual events, such as the Washington Harvest Festival, celebrate the community’s agricultural roots and provide entertainment for residents and visitors alike.