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Welcome to Northumberland County ...

Time Zone: Northumberland County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Sunbury is the Seat for Northumberland County.

Northumberland County was founded March 21, 1772. Northumberland was created by taking area from Lancaster, Cumberland, Berks, Bedford and Northampton Counties.

From the Census Estimates for 2019, <1> Northumberland had a population of 90,843 people. This is a decrease of 3.66% since the last Census (which gave a population of 94,293 people in 2010).

At the time of the 2010 Census, Northumberland represented 0.74% of the total population of Pennsylvania.

Below are some of the communities located in Northumberland County:

  • Herndon
    (12 miles [19.3 km] to the southwest)
    • Herndon is located in Northumberland County (PA)
    • Jump to our Gazetteer entry for Herndon
    • Population from the 2020 Census: 299 people
    • Jump to TripAdvisor's Tourism page for Herndon <2>
  • Kulpmont
    (7 miles [11.3 km] to the east)
    • Kulpmont is located in Northumberland County (PA)
    • Jump to our Gazetteer entry for Kulpmont
    • Population from the 2020 Census: 2,735 people
    • Jump to TripAdvisor's Tourism page for Kulpmont <2>
  • Marion Heights
    (6 miles [9.7 km] to the east)
    • Marion Heights is located in Northumberland County (PA)
    • Jump to our Gazetteer entry for Marion Heights
    • Population from the 2020 Census: 573 people
  • McEwensville
    (16 miles [25.7 km] to the northwest)
  • Milton
    (13 miles [20.9 km] to the northwest)
    • Milton is located in Northumberland County (PA)
    • Jump to our Gazetteer entry for Milton
    • Population from the 2020 Census: 6,550 people
  • Mount Carmel
    (14 miles [22.5 km] to the east)
  • Northumberland
    (6 miles [9.7 km] to the west)
  • Riverside
    (6 miles [9.7 km] to the north)
    • Riverside is located in Northumberland County (PA)
    • Jump to our Gazetteer entry for Riverside
    • Population from the 2020 Census: 1,839 people
    • Jump to TripAdvisor's Tourism page for Riverside <2>
  • Continue List   (5 more) ...
    • Shamokin
      (8 miles [12.9 km] to the southeast)
      • Shamokin is located in Northumberland County (PA)
      • Jump to our Gazetteer entry for Shamokin
      • Population from the 2020 Census: 6,909 people
      • Jump to TripAdvisor's Tourism page for Shamokin <2>
    • Snydertown
      (Less than 2 miles to the northeast)
      • Snydertown is located in Northumberland County (PA)
      • Jump to our Gazetteer entry for Snydertown
      • Population from the 2020 Census: 316 people
    • Sunbury
      (5 miles [8 km] to the west)
      • Sunbury is located in Northumberland County (PA)
      • Jump to our Gazetteer entry for Sunbury
      • Population from the 2020 Census: 9,322 people
      • Jump to TripAdvisor's Tourism page for Sunbury <2>
    • Turbotville
      (16 miles [25.7 km] to the north)
    • Watsontown
      (17 miles [27.4 km] to the northwest)
      • Watsontown is located in Northumberland County (PA)
      • Jump to our Gazetteer entry for Watsontown
      • Population from the 2020 Census: 2,243 people
      • Jump to TripAdvisor's Tourism page for Watsontown <2>

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.