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Where am ILOCATED

Sunbury, PA Micro Area

The Sunbury, PA micro area is made up of 2 counties in Pennsylvania: Northumberland and Montour. About 107,788 people lived there on July 1, 2025 (Census estimate), 1.8% fewer than in April 2020.

Montour County, outlyingNorthumberland County, centralSunbury
Central Outlying 2 counties in Pennsylvania
Population, July 2025
107,788 1.8% fewer than in April 2020
Type
Micropolitan statistical area
Counties
2: 1 central, 1 outlying
Land area
588 sq mi (1,523 km²)
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
State
Pennsylvania
Combined statistical area
Bloomsburg-Berwick-Sunbury, PA
CBSA code
44980
Open this area in the metro area finder

Counties in the Sunbury, PA micro area, largest first

CountyRolePopulation, July 2025Share of the area
Northumberland CountyCentral89,92083.4%
Montour CountyOutlying17,86816.6%

A central county holds the area’s core, an urban area of 10,000 to 49,999 people. An outlying county is in the area because of commuting: at least a quarter of its workers have jobs in the central county, or at least a quarter of the people working there live in them. A county belongs to one metro or micro area at most, and it counts whole, countryside included.

Principal city

  1. Sunbury9,617 people

OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.

Part of the Bloomsburg-Berwick-Sunbury, PA combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other 3 areas in this one, largest first:

  1. Bloomsburg-Berwick, PA Micro Area66,193 people
  2. Lewisburg, PA Micro Area42,313 people
  3. Selinsgrove, PA Micro Area39,655 people

Bordering metro and micro areas, nearest first

Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.

  1. Selinsgrove, PA Micro Area5.9 mi southwest
  2. Lewisburg, PA Micro Area8.9 mi northwest
  3. Bloomsburg-Berwick, PA Micro Area20 mi northeast
  4. Williamsport, PA Metro Area29 mi northwest
  5. Pottsville, PA Micro Area33 mi east
  6. Harrisburg-Carlisle, PA Metro Area41 mi south

Before using this answer on a form

A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.

Find the metro area where you are now, find your county, or see every metro and micro area by population.

See this area on Census.gov ↗