Northumberland County, Pennsylvania

Northumberland County: county in Pennsylvania, United States

About

Northumberland County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 94,528 and a population density of 76 people per km². After 10 years in 2020 county had an estimated population of 90,258 inhabitants. Its county seat is Sunbury. The county was created 254 years ago in 1772.

Northumberland County locator map
Location of Northumberland County on Pennsylvania map.

County Snapshot

Northumberland County at a glance

Northumberland County currently has 17 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

17

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Northumberland County

Population 90,258 (2020)
Country United States of America
State Pennsylvania (United States)
Different from Northumberland County
Area 1236 km2
Water as percent of area 4%
Land as percent of area 96%
Latitude & Longitude 40.8520,-76.7093
Named for Northumberland
Altitude 571 feet / 174 meters
Capital Sunbury
Establishment March 21, 1772
Time Zone America/New_York
Local time 22:07:31 (18th April 2026)
Density 73 Pop. per km² as of 2020
Population growth -4.73% (2010-2020)
Weather 76℉ Mostly Sunny then Slight Chance Rain Showers 7-days weather
Northumberland County Courthouse - Sunbury  PA image
Northumberland County Courthouse - Sunbury PA image

Geography

Northumberland County is located at 40°51'7"N 76°42'34"W (40.8519800, -76.7093200). It has 8 neighbors: Columbia County, Dauphin County, Juniata County, Lycoming County, Montour County, Schuylkill County, Snyder County and Union County.

Northumberland County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Northumberland County is Sunbury with a population of 9,322. Other cities include, Northumberland population 3,570, Kulpmont population 2,735, Shamokin population 2,367 and Watsontown population 2,243. See all Northumberland County cities & populated places.

Northumberland County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Northumberland County.

City Name Population Title
Sunbury 9,322 City in western Northumberland County, Pennsylvania
Northumberland 3,570 Borough in western Northumberland County, Pennsylvania, United States
Kulpmont 2,735 Borough in southeastern Northumberland County, Pennsylvania
Shamokin 2,367 City in southeastern Northumberland County, Pennsylvania
Watsontown 2,243 Borough in northwestern Northumberland County, Pennsylvania
Elysburg 2,194 Census-designated place (CDP) in Northumberland County, Pennsylvania, United States
Trevorton 1,834 Census designated place
Marshallton 1,441 Census designated place
Atlas 809 Census-designated place in Northumberland County, Pennsylvania
Turbotville 662 Borough in northwestern Northumberland County, Pennsylvania
Marion Heights 573 Borough in southeastern Northumberland County, Pennsylvania
West Cameron 522 Township in southern Northumberland County, Pennsylvania
Hamilton 479 Township in Adams County, Pennsylvania
Herndon 299 Borough in southwestern Northumberland County, Pennsylvania, United States
McEwensville 273 Borough in northwestern Northumberland County, Pennsylvania
Reed 240 Township in western Dauphin County, Pennsylvania

Weather

76°F
Mostly Sunny then Slight Chance Rain Showers
2 to 10 mph SE Saturday

A slight chance of rain showers after 2pm. Mostly sunny, with a high near 76. Southeast wind 2 to 10 mph, with gusts as high as 23 mph. Chance of prec...

7-Day Forecast

Official website of Northumberland County

Official Website

Demographics

According to census records, the population of Northumberland County decreased by 4.73% in 10 years.

Year Population % Change Method
1995 94,348 - 2010-07-01T00:00:00Z
2010 94,528 0.19% census
2011 94,392 -0.14% estimation process
2012 94,410 0.02% estimation process
2013 93,877 -0.57% estimation process
2014 93,590 -0.31% estimation process
2015 92,878 -0.77% estimation process
2016 92,283 -0.64% estimation process
2017 91,721 -0.61% estimation process
2018 91,080 -0.7% estimation process
2019 90,843 -0.26% estimation process
2020 90,258 -0.65% estimation process
Comitatul Northumberland, Comte de Northumberland, Comté de Northumberland, Condado de Northumberland, Condado han Northumberland, Contea di Northumberland, Hrabstwo Northumberland, Konteth Northumberland, Nortamberlend, Northumberland, Northumberland Comitatus, Northumberland Kun, Northumberland Kūn, Northumberland konderria, Northumberland megye, Nortumburland, Okrug Nortamberland, Quan Northumberland, Quận Northumberland, nartha'ambaralyanda ka'unti, nosanbarando jun, nuo sen bo lan xian, Нортамберленд, Нортъмбърланд, Округ Нортамберланд, Նորթամբերլենդ շրջան, شهرستان نورث‌آمبرلند، پنسیلوانیا, مقاطعة نورثمبرلاند, نارتھمبرلینڈ کاؤنٹی، پنسلوانیا, نارتھنمبرلینڈ کاؤنٹی, নর্থআম্বারল্যান্ড কাউন্টি, ノーサンバーランド郡, 諾森伯蘭縣

People born in Northumberland County (15)

People born in Northumberland County, including actress Ellen Albertini Dow, member of the U.S. House of Representatives from Pennsylvania Thomas Wilson, Union Army general James Blair Steedman, .

More notable people

  • Glenn Ressler (American football player) he was born in 21/05/1943
  • Henry Kent McCay (United States federal judge) he was born in 08/01/1820
  • Jacob G. Frick (United States Army Medal of Honor recipient) he was born in 23/01/1825
  • John Schwartz (Anti-Lecompton Republican member of the U.S. House of Representatives) he was born in 27/10/1793
  • Matthew Brown (American academic administrator and minister) he was born in 16/01/1776
  • Thomas L. Hamer (American politician) he was born in 01/07/1800
  • William Plunkett Maclay (American politician) he was born in 23/08/1774
  • Julius Augustus Lindauer (American shoemaker) he was born in 01/03/1849
  • Max N. Lindauer (American farmer) he was born in 21/12/1860
  • John J. Lindauer (American soldier during Civil War) he was born in 12/10/1838
  • Emily H. Voris (Spouse of Randall Jacobs) she was born in 12/11/1885
  • Stan Coveleski (American Major League Baseball pitcher during the 1910s and 1920s who primarily threw the spitball) he was born in 13/07/1889

Other places with the same name (1)

Pennsylvania Other Counties (more counties)

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Chester County 526,759 County in Pennsylvania, United States
York County 450,448 County in Maine, United States
Berks County 421,017 County in Pennsylvania, United States
Lehigh County 370,802 County in Pennsylvania, United States of America
Westmoreland County 347,087 County in Pennsylvania, United States
Luzerne County 316,982 County in Pennsylvania, United States
Northampton County 305,892 County in Pennsylvania, United States
Pittsburgh 299,226 The second most populous city in Pennsylvania and the center of the Pittsburgh metropolitan area.
Dauphin County 279,874 County in Pennsylvania, United States