Cities and Towns in Northumberland County, Pennsylvania

Founded in 1772, Northumberland County is one of 67 counties in the state of Pennsylvania. Historically, Northumberland County was formed from parts of Lancaster, Berks, Bedford, Cumberland, and Northampton Counties. The city of Sunbury is the county seat. With FIPS code of 97, Northumberland County has a population of 91,266 and area of 477 square miles (1,235 km²).

List of all cities in Northumberland County, PA alphabetically

City/Town Postal Code Area Code
Anthony, PA 17772 570
Atlas, PA 17851 570
Augustaville, PA 17801 570
Bear Gap, PA 17824 570
Bear Valley, PA 17872 570
Boydtown, PA 17872 570
Camp Grove, PA 17830 570
Chillisquaque, PA 17850 570
Coal, PA 17872 570
Coal Run, PA 17866 570
Coal Township, PA 17866 570
Comly, PA 17772 570
Connersville, PA 17851 570
Dalmatia, PA 17017 570
Delaware Run, PA 17777 570
Dewart, PA 17730 570
Diamondtown, PA 17851 570
Dooleyville, PA 17851 570
Dornsife, PA 17823 570
Doutyville, PA 17872 570
Dunkelbergers, PA 17872 570
East Chillisquaq, PA 17847 570
East Lewisburg, PA 17847 570
Elysburg, PA 17824 570
Excelsior, PA 17866 570
Fisherdale, PA 17824 570
Fishers Ferry, PA 17801 570
Goosetown, PA 17777 570
Gowen City, PA 17872 570
Greenbrier, PA 17867 570
Happy Valley, PA 17824 570
Hebe, PA 17830 570
Herndon, PA 17830 570
Hunter, PA 17872 570
Island Park, PA 17801 570
Kapp Heights, PA 17857 570
Klines Grove, PA 17801 570
Knoebels Grv, PA 17824 570
Kulpmont, PA 17834 570
Leck Kill, PA 17836 570
Leckkill, PA 17836 570
Limestonevle, PA 17847 570
Lithia Sprs, PA 17857 570
Little Mahany, PA 17823 570
Locust Gap, PA 17840 570
Lower Augusta, PA 17801 570
Luke Fidler, PA 17872 570
Mandata, PA 17830 570
Marion Height, PA 17832 570
Marion Heights, PA 17832 570
Marshallton, PA 17872 570
Mc Ewensville, PA 17749 570
McEwensville, PA 17749 570
Meadowview, PA 17860 570
Merrian, PA 17851 570
Mile Hill, PA 17801 570
Mile Run, PA 17801 570
Milton, PA 17847 570
Montandon, PA 17850 570
Mount Carmel, PA 17851 570
Natalie, PA 17851 570
Northumberland, PA 17857 570
Oak Park, PA 17857 570
Oaklyn, PA 17801 570
Paxinos, PA 17860 570
Potts Grove, PA 17865 570
Ralpho, PA 17872 570
Ranshaw, PA 17866 570
Rebuck, PA 17867 570
Red Cross, PA 17823 570
Reed Station, PA 17860 570
Reeders Grove, PA 17824 570
Riverside, PA 17868 570
Rockefeller, PA 17801 570
Sagon, PA 17872 570
Schuyler, PA 17772 570
Sevenpoints, PA 17801 570
Shamokin, PA 17872 570
Snydertown, PA 17877 570
Stonington, PA 17801 570
Strong, PA 17851 570
Sunbury, PA 17801 570
17877 570
Sunnyside, PA 17872 570
Tharptown, PA 17872 570
Trevorton, PA 17881 570
Turbotville, PA 17772 570
Upper Augusta, PA 17801 570
Upper Mahanoy, PA 17836 570
Urban, PA 17830 570
Watsontown, PA 17777 570
Watsonville, PA 17777 570
Weigh Scale, PA 17872 570
West Cameron, PA 17872 570
West Chillisquaq, PA 17850 570
Wolverton, PA 17868 570

Major Cities and Towns in Northumberland County, Pennsylvania

1. Sunbury

Location and History

Sunbury is the county seat of Northumberland County, located at the confluence of the Susquehanna and Shamokin Creeks in central Pennsylvania. The town was founded in 1772 and was named after Sunbury, England. Sunbury was a key center of transportation and commerce in the 19th century, primarily due to its position along the Susquehanna River, which made it a vital stop for river traffic and later, railroads. During the 1800s, the town flourished with the development of industries such as iron, coal, and textiles. Sunbury has a rich history, playing an important role in Pennsylvania’s industrial revolution. Today, it is known for its historic buildings, its riverside parks, and its role as a commercial and governmental center in Northumberland County.

Area, Population, and Demographics

  • Area: 1.6 square miles
  • Population: Approximately 9,000
  • Zip Codes: 17801
  • Latitude: 40.8612° N
  • Longitude: 76.7910° W

Major Schools and Landmarks

Sunbury is served by the Shikellamy School District, with schools such as Sunbury High School and the Shikellamy Middle School. The town is home to several historic landmarks, including the Northumberland County Courthouse, which dates back to 1860, and the Sunbury Historic District, filled with well-preserved 19th-century architecture. Additionally, Sunbury boasts the Susquehanna River Walk, a scenic path along the river that offers walking and biking opportunities. The city is also known for its vibrant downtown area, where local businesses and restaurants thrive. Sunbury’s blend of history, scenic views, and community-centered environment make it a unique and important part of Northumberland County.


2. Shamokin

Location and History

Shamokin is a city located in the northeastern part of Northumberland County, near the Appalachian foothills. The city was founded in the early 19th century and grew rapidly during the coal mining boom of the late 1800s. Shamokin’s location near rich coal deposits made it one of the key centers of Pennsylvania’s anthracite coal industry, which fueled the region’s economy for decades. The city reached its peak in population and industry in the early 20th century but experienced significant economic decline following the collapse of the coal industry. Today, Shamokin is working to revitalize its economy and infrastructure while preserving its historical roots.

Area, Population, and Demographics

  • Area: 1.3 square miles
  • Population: Approximately 7,000
  • Zip Codes: 17872
  • Latitude: 40.7867° N
  • Longitude: 76.5412° W

Major Schools and Landmarks

Shamokin is part of the Shamokin Area School District, with schools such as Shamokin Area High School and Middle School. Key landmarks in the city include the Shamokin Historic District, which showcases the town’s 19th-century mining heritage, and the Shamokin Dam, an important waterway and recreational site. The city also features several parks, such as Kehr’s Mill Park, which is popular for outdoor activities like hiking and picnicking. The Coal Township, which includes Shamokin, is home to numerous historic buildings that reflect the city’s once-thriving coal industry. Shamokin is gradually transitioning into a town that values its past while looking towards new opportunities for growth and development.


3. Milton

Location and History

Milton is a borough located along the West Branch of the Susquehanna River, in the southeastern part of Northumberland County. It was founded in 1772 and grew rapidly during the early 19th century, largely due to its strategic location along the river and the Pennsylvania Canal. Milton’s economy historically revolved around the shipping of coal, timber, and other goods along the canal, which connected the town to markets across the state. The town’s prosperity continued into the late 19th century with the establishment of manufacturing industries. Today, Milton is known for its well-preserved Victorian architecture and its role as a residential and small-business center.

Area, Population, and Demographics

  • Area: 1.1 square miles
  • Population: Approximately 7,000
  • Zip Codes: 17847
  • Latitude: 41.0144° N
  • Longitude: 76.8485° W

Major Schools and Landmarks

Milton is served by the Milton Area School District, which includes Milton Area High School. The town also has several private and charter schools. Landmarks in Milton include the Milton Historic District, which is home to a collection of beautiful 19th-century homes and churches, many of which reflect the town’s industrial past. The Milton Pennsylvania Canal Park, along the banks of the Susquehanna River, provides walking trails and a glimpse into the town’s historic canal transportation network. The town also hosts annual community events such as the Milton Apple Festival, celebrating its agricultural roots. Milton’s charm lies in its small-town atmosphere, historic character, and proximity to the Susquehanna River.


4. Northumberland

Location and History

Northumberland is a historic borough located along the Susquehanna River in the central part of Northumberland County. The town was founded in 1772 and quickly became an important commercial and cultural center in the region. Northumberland’s history is closely tied to the Susquehanna River and the construction of the Pennsylvania Canal, which passed through the town and brought both prosperity and growth in the 19th century. The town also has a rich Revolutionary War history, serving as a military encampment during the war. Today, Northumberland is known for its preserved 19th-century architecture, parks, and its connection to the river.

Area, Population, and Demographics

  • Area: 1.0 square miles
  • Population: Approximately 3,500
  • Zip Codes: 17857
  • Latitude: 40.8550° N
  • Longitude: 76.7927° W

Major Schools and Landmarks

Northumberland is served by the Shikellamy School District, with students attending Shikellamy High School and Northumberland Elementary School. Notable landmarks include the historic Northumberland County Courthouse and the Northumberland National Bank building, which reflects the town’s 19th-century commercial prosperity. The town is also known for its riverfront park, which offers scenic views of the Susquehanna River and outdoor recreational activities. Northumberland’s well-preserved architecture, including the Governor’s Mansion, and its quiet, riverfront setting make it an attractive place for residents and visitors interested in history, culture, and natural beauty.


5. Herndon

Location and History

Herndon is a small borough located in the northern part of Northumberland County, near the borders of Snyder and Northumberland Counties. The town’s history is tied to its location along the Mahantango Creek, which provided transportation routes for early settlers and industries. Herndon was originally founded in the 19th century as a small farming and lumbering community. Over time, it became a peaceful residential area with a rural atmosphere. Today, Herndon maintains its small-town character while offering proximity to the larger cities in the region.

Area, Population, and Demographics

  • Area: 0.4 square miles
  • Population: Approximately 300
  • Zip Codes: 17830
  • Latitude: 40.7247° N
  • Longitude: 76.9738° W

Major Schools and Landmarks

Herndon is part of the Line Mountain School District, with Line Mountain High School serving students from Herndon and surrounding areas. The town itself is a quiet, scenic area with few commercial developments, but it is known for its proximity to the Mahantango Creek and the nearby natural attractions. Herndon offers a rural lifestyle with opportunities for outdoor activities such as fishing, hiking, and wildlife observation. The area surrounding Herndon is rich in farmland and forest, providing ample space for outdoor recreation and a peaceful living environment.