Northumberland County is a county in the Commonwealth of Pennsylvania. It is part of Northeastern Pennsylvania. As of the 2020 census, the population was 91,647. Its county seat is Sunbury.
Mahoning Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,406 at the 2020 census, a decrease from 1,425 at the 2010 census.
Mount Joy Township is a township that is located in northwestern Lancaster County, Pennsylvania, United States. The population was 10,753 at the time of the 2020 census.
Mount Gretna Heights is an unincorporated community and census-designated place (CDP) in Lebanon County, Pennsylvania, United States, adjacent to the borough of Mount Gretna. The population was 323 at the 2010 census.
Pleasant Hill is an unincorporated community and census-designated place (CDP) in Lebanon County, Pennsylvania, United States. The population was 2,643 at the 2010 census, up from 2,301 at the 2000 census.
Kulpmont is a borough in Northumberland County, Pennsylvania, United States. The population was 2,758 at the 2020 census.
Marion Heights is a borough in Northumberland County, Pennsylvania, United States. The population was 611 at the 2010 census.
Mount Carmel is a borough in Northumberland County, located in the Coal Heritage Region of Central Pennsylvania's Susquehanna River Valley, United States. The population was 5,725 at the 2020 census. It is located 88 miles (141 km) northwest of Philadelphia and 71 miles (114 km) northeast of Harrisburg, in the Coal Region. It is completely encircled by Mount Carmel Township.
Mount Carmel Township is a township that is located in Northumberland County, Pennsylvania in the United States. The population at the time of the 2010 Census was 3,139, which was an increase over the figure of 2,701 that was tabulated during the 2000.
Hickory is a census-designated place located in Mount Pleasant Township, Washington County in the state of Pennsylvania. As of the 2010 census the population was 740 residents.
Mount Aetna is a census-designated place in Tulpehocken Township, Berks County, Pennsylvania, United States. It is located along Pennsylvania Route 501 near the border of Lebanon County. The community is named after the active volcano, Mount Etna, in Sicily. As of the 2010 census, the population was 354 residents.
New Market is a census-designated place located in Fairview Township, York County in the state of Pennsylvania, United States. The community is located near the Susquehanna River in far northern York County, near the borough of New Cumberland, which is located in Cumberland County. As of the 2020 census, the population was 705 residents.
Enhaut is an unincorporated community and census-designated place (CDP) located in Swatara Township, Dauphin County, Pennsylvania, United States. The community was formerly part of the census-designated place of Bressler-Enhaut-Oberlin, before splitting into three separate CDPs for the 2010 census. As of the 2010 census, the population in Enhaut was 1,007.
Kapp Heights is a census-designated place located in Point Township, Northumberland County in the state of Pennsylvania. The community is located very close to the borough of Northumberland along Pennsylvania Route 147, near the confluence of the West Branch Susquehanna River and Susquehanna Rivers. As of the 2010 census the population was 863 residents.
Montandon is a census-designated place located in West Chillisquaque Township, Northumberland County in the state of Pennsylvania, United States. The community is located near the West Branch Susquehanna River at the intersections of Pennsylvania Routes 147 and 45, roughly halfway between the boroughs of Northumberland and Milton. As of the 2010 census the population was 903 residents.
Grier City is a census-designated place located in Rush Township, Schuylkill County in the state of Pennsylvania, United States. Grier City was part of the Grier City-Park Crest CDP for the 2000 census, before splitting into two separate CDPs for the 2010 census, the other being Park Crest. The community is located off Interstate 81. As of the 2010 census, the population was 241 residents. As of the 2020 census, the population was 296 residents.
Muir is a census-designated place located in Porter Township, Schuylkill County in the state of Pennsylvania, United States. Muir was part of the Reinerton-Orwin-Muir CDP at the 2000 census before splitting into three individual CDPs for the 2010 census. The other communities, along with Muir are Reinerton and Orwin. The community is located near the borough of Tower City along U.S. Route 209. As of the 2010 census, the population was 451 residents.
Orwin is a census-designated place located in Porter Township, Schuylkill County in the state of Pennsylvania, United States. Orwin was part of the Reinerton-Orwin-Muir CDP at the 2000 census before splitting into three individual CDPs for the 2010 census. The other communities, along with Orwin are Reinerton and Muir. The community is located near the community of Muir along U.S. Route 209. As of the 2010 census, the population was 314 residents.
Park Crest is a census-designated place located in Rush Township in Schuylkill County in the state of Pennsylvania, United States. Park Crest was part of the Grier City-Park Crest CDP for the 2000 census, before splitting into two separate CDPs for the 2010 census, the other being Grier City. The community is located off Interstate 81. As of the 2010 census, the population was 542 residents.
Dalmatia is a census-designated place located in Lower Mahanoy Township, Northumberland County in the state of Pennsylvania. The community is located along Pennsylvania Route 147 in southwestern Northumberland County, along the Susquehanna River. As of the 2010 census the population was 488 residents.
