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NXS-GRX-USA · Northern America · Regions

Pennsylvania

First-level unit, United States of America: people, area, the units inside and neighbours, with risk values when released.

Page GRX-USA-REdition Baseline Edition 2026Evidence close 2026-09-30ISO USA / USStatus UN member stateValues not yet publishedMethod v1.0.0-draft
13,186,023
people (GHSL 2025)
117,194 km²
area
3.8%
of United States of America
67
units inside

01Kaart

Inside Pennsylvania

The 67 ADM2 units of Pennsylvania.

FIG 1 · 67 units inside Pennsylvania
Loading the map

Units rise with people per km² · GHSL 2025 raster · terrain · ADM1 ADM2Risk values when released
Lowest fifthLow fifthMiddle fifthHigh fifthHighest fifthNo data
Column height and colour show people per km² by unit, in quantile fifths among the units shown (the key on the map gives the breaks); units with no people on the grid are grey, not the lowest class; the raster beneath is the GHSL 2025 population grid. Source observations, not index values. Select a unit to drill into the units inside it; the path above the map climbs back.
02Figures

People, area and density

Source observations from open grids summed inside the boundary; not index values.

Mense · GHSL 2025

13,186,023

3.8% of United States of America.

Mense · WorldPop 2025

12,691,935

-4% against GHSL; the two grids differ in method.

Area

117,194 km²

113 people per km².

Code

US-PA

Subdivision code as carried by the boundary source.

Laagliggende kussone

347,109

people on land at or below 10 m, 2.6% of the unit (GEBCO 2024 and GHSL 2025).

03Units

67 units inside Pennsylvania

Each unit has its own page.

Boundary licences: Public Domain

Unit Code People (GHSL) People (WorldPop) Area km² Per km² Share Coast ≤ 10 m
Adams – 113,073 109,455 1,350.68 84 0.9% 0
Allegheny – 1,184,351 1,221,722 1,924.1 616 9% 0
Armstrong – 67,090 57,138 1,717.79 39 0.5% 0
Beaver – 165,404 161,784 1,149.88 144 1.3% 0
Bedford – 52,331 44,404 2,631.48 20 0.4% 0
Berks – 438,260 427,226 2,243.61 195 3.3% 0
Blair – 129,626 115,295 1,361.79 95 1% 0
Bradford – 64,080 55,307 2,998.55 21 0.5% 0
Bucks – 691,770 662,568 1,607.99 430 5.2% 45,029
Butler – 196,469 203,683 2,055.16 96 1.5% 0
Cambria – 132,119 109,166 1,786.77 74 1% 0
Cameron – 4,932 3,819 1,029.47 5 0% 0
Carbon – 68,506 60,001 1,001.29 68 0.5% 0
Centre – 161,742 149,533 2,881.77 56 1.2% 0
Chester – 582,499 579,114 1,962.75 297 4.4% 0
Clarion – 41,864 34,692 1,576.85 27 0.3% 0
Clearfield – 84,826 77,210 2,988.2 28 0.6% 0
Clinton – 40,965 35,531 2,318.09 18 0.3% 0
Columbia – 62,036 53,108 1,269.87 49 0.5% 0
Crawford – 89,369 75,473 2,681.62 33 0.7% 0
Cumberland – 266,726 276,043 1,427.96 187 2% 0
Dauphin – 287,107 293,736 1,445.02 199 2.2% 0
Delaware – 455,102 450,706 493.46 922 3.5% 36,552
Elk – 31,161 28,661 2,150.75 14 0.2% 0
Erie – 275,252 246,118 2,093.85 131 2.1% 0
Fayette – 147,955 127,619 2,067.16 72 1.1% 0
Forest – 8,071 5,485 1,104.77 7 0.1% 0
Franklin – 169,317 163,364 1,997.28 85 1.3% 0
Fulton – 18,080 16,268 1,133.32 16 0.1% 0
Greene – 45,382 39,725 1,494.93 30 0.3% 0
Huntingdon – 49,511 43,532 2,300.89 22 0.4% 0
Indiana – 83,426 68,667 2,161.83 39 0.6% 0
Jefferson – 46,104 42,220 1,699.56 27 0.3% 0
Juniata – 26,267 22,304 1,016.44 26 0.2% 0
Lackawanna – 218,752 210,531 1,206.08 181 1.7% 0
Lancaster – 554,062 550,308 2,540.34 218 4.2% 0
Lawrence – 95,049 80,683 938.55 101 0.7% 0
Lebanon – 134,399 137,798 937.63 143 1% 0
Lehigh – 384,142 362,178 899.09 427 2.9% 0
Luzerne – 330,230 324,480 2,346.15 141 2.5% 0
Lycoming – 118,940 109,675 3,224.38 37 0.9% 0
McKean – 44,391 36,746 2,544.19 17 0.3% 0
Mercer – 106,755 92,413 1,764.19 61 0.8% 0
Mifflin – 46,759 43,063 1,074.19 44 0.4% 0
Monroe – 198,436 169,035 1,593.78 125 1.5% 0
Montgomery – 789,087 789,006 1,261.62 625 6% 0
Montour – 19,702 18,722 342.52 58 0.1% 0
Northampton – 350,415 322,922 977.58 358 2.7% 0
Northumberland – 99,900 91,089 1,234.03 81 0.8% 0
Perry – 43,725 39,930 1,437.92 30 0.3% 0
Philadelphia – 1,684,560 1,706,290 370.53 4,546 12.8% 280,693
Pike – 61,325 55,276 1,464.6 42 0.5% 0
Potter – 17,574 14,783 2,797.29 6 0.1% 0
Schuylkill – 148,687 131,107 2,023.28 73 1.1% 0
Snyder – 41,104 36,420 856.2 48 0.3% 0
Somerset – 91,681 77,775 2,797.78 33 0.7% 0
Sullivan – 6,042 4,851 1,172.58 5 0% 0
Susquehanna – 43,853 31,830 2,153.03 20 0.3% 0
Tioga – 42,863 39,032 2,931.52 15 0.3% 0
Union – 42,388 34,792 822.37 52 0.3% 0
Venango – 54,632 43,920 1,768.76 31 0.4% 0
Warren – 42,618 34,695 2,332.08 18 0.3% 0
Washington – 207,650 200,137 2,227.54 93 1.6% 0
Wayne – 56,288 48,405 1,942.03 29 0.4% 0
Westmoreland – 333,311 308,271 2,680.6 124 2.5% 0
Wyoming – 29,289 23,610 1,044.35 28 0.2% 0
York – 466,638 461,484 2,354.63 198 3.5% 0
04Exposure

Open exposure layers

Count of H3 resolution-3 cells whose centre falls in the unit and that carry each Natural Earth layer.

Urban areas
7,801.3 H3 cells
Hawens
1 H3 cells
Lughawens
2 H3 cells
Major roads
8,259.4 H3 cells
Spoorweë
1,733.8 H3 cells
Rivers and lakes
1,467 H3 cells
05Risiko

Risk values

Values when released. Subnational risk values for Pennsylvania publish with the edition from The Global Risks Index. Until then, run a scenario on open data for United States of America.
06Neighbours

Neighbouring units

07Bronne

Sources, credits and licences

ADM1 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM1, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
ADM2 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM2, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
Basemap
OpenFreeMap © OpenMapTiles (CC BY 4.0) · data © OpenStreetMap contributors (ODbL 1.0). Vector tiles requested by the reader’s browser, unmodified; the map falls back to plain land and sea when the host does not answer.
Terrain
Terrain Tiles (Mapzen, AWS Open Data), compiled from SRTM and other public elevation sources (NASA, USGS, ETOPO1, GMTED, EU-DEM under the Copernicus programme, Geoscience Australia, Kartverket, INEGI, LINZ, data.gov.uk). Display relief, not survey data.
People
GHSL 2025 population grid, European Commission Joint Research Centre (CC BY 4.0), shown at 0.05° and summed per unit; WorldPop 2025 (CC BY 4.0) as a second estimate. Units smaller than a grid cell take the density of the cell under them.
Lande
Natural Earth (public domain).
Elevation
GEBCO Compilation Group (2024) GEBCO 2024 Grid (public domain), reduced to 0.05°: the share of each cell’s land at or below 10 m, weighted by GHSL 2025 people for the low coastal zone.
Position
Boundaries are shown for location only and take no position on any boundary, name or status.