US Census Data

Most densely populated in Pennsylvania

Pennsylvania counties and cities ranked by population density.

This page ranks the counties and cities of Pennsylvania by population density — which have the most people per square mile, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Philadelphia County leads at 11,781/sq mi.

Among cities & places, Millbourne leads at 17,552/sq mi.

Counties

#NamePeople / sq mi
1Philadelphia County11,781/sq mi
2Delaware County3,135/sq mi
3Montgomery County1,783/sq mi
4Allegheny County1,699/sq mi
5Lehigh County1,087/sq mi
6Bucks County1,069/sq mi
7Northampton County854/sq mi
8Chester County721/sq mi
9Lancaster County588/sq mi
10Dauphin County548/sq mi
11York County508/sq mi
12Berks County502/sq mi
13Cumberland County485/sq mi
14Lackawanna County470/sq mi
15Lebanon County397/sq mi
16Beaver County384/sq mi
17Luzerne County366/sq mi
18Westmoreland County344/sq mi
19Erie County337/sq mi
20Monroe County276/sq mi
21Butler County248/sq mi
22Washington County245/sq mi
23Lawrence County239/sq mi
24Blair County232/sq mi
25Adams County203/sq mi
26Franklin County203/sq mi
27Northumberland County199/sq mi
28Cambria County192/sq mi
29Schuylkill County184/sq mi
30Carbon County171/sq mi
31Mercer County163/sq mi
32Fayette County161/sq mi
33Centre County143/sq mi
34Montour County139/sq mi
35Union County135/sq mi
36Columbia County135/sq mi
37Snyder County121/sq mi
38Mifflin County112/sq mi
39Pike County110/sq mi
40Indiana County101/sq mi
41Armstrong County100/sq mi
42Lycoming County92/sq mi
43Perry County83/sq mi
44Crawford County82/sq mi
45Venango County74/sq mi
46Wayne County71/sq mi
47Clearfield County69/sq mi
48Somerset County68/sq mi
49Jefferson County68/sq mi
50Wyoming County66/sq mi
51Clarion County62/sq mi
52Greene County61/sq mi
53Juniata County60/sq mi
54Bradford County52/sq mi
55Huntingdon County50/sq mi
56Bedford County47/sq mi
57Susquehanna County47/sq mi
58Warren County43/sq mi
59Clinton County42/sq mi
60McKean County41/sq mi
61Elk County37/sq mi
62Tioga County36/sq mi
63Fulton County33/sq mi
64Forest County16/sq mi
65Potter County15/sq mi
66Sullivan County13/sq mi
67Cameron County11/sq mi

Cities & places

Top 100.
#NamePeople / sq mi
1Millbourne17,552/sq mi
2East Lansdowne13,081/sq mi
3Darby12,662/sq mi
4Philadelphia11,781/sq mi
5Parkside11,195/sq mi
6Clifton Heights10,821/sq mi
7Dormont10,679/sq mi
8West Chester10,419/sq mi
9Colwyn10,381/sq mi
10Collingdale10,192/sq mi
11Norristown10,179/sq mi
12Mount Oliver9,859/sq mi
13West York9,675/sq mi
14Reading9,635/sq mi
15Drexel Hill9,386/sq mi
16Lansdowne9,365/sq mi
17Springmont9,233/sq mi
18Conshohocken9,196/sq mi
19Cheltenham Village9,192/sq mi
20Kutztown University8,917/sq mi
21Narberth8,913/sq mi
22Pennsbury Village8,912/sq mi
23State College8,883/sq mi
24Prospect Park8,749/sq mi
25Mount Carmel8,608/sq mi
26York8,471/sq mi
27Shamokin8,350/sq mi
28University of Pittsburgh Bradford8,266/sq mi
29North York8,209/sq mi
30Aspinwall8,169/sq mi
31Bellevue8,108/sq mi
32Indiana8,054/sq mi
33Jenkintown8,028/sq mi
34Ambler8,005/sq mi
35Lancaster7,981/sq mi
36Mount Penn7,917/sq mi
37Sharon Hill7,747/sq mi
38Morton7,727/sq mi
39Bridgeport7,715/sq mi
40Roslyn7,706/sq mi
41Media7,693/sq mi
42Ingram7,691/sq mi
43Rockledge7,659/sq mi
44West Reading7,634/sq mi
45Norwood7,605/sq mi
46Avalon7,604/sq mi
47Yeadon7,567/sq mi
48McAdoo7,543/sq mi
49Glenolden7,394/sq mi
50Dale7,388/sq mi
51Coatesville7,367/sq mi
52Penbrook7,299/sq mi
53Ardmore7,204/sq mi
54Arcadia University7,172/sq mi
55Allentown7,135/sq mi
56Wilson7,094/sq mi
57Messiah College7,090/sq mi
58Aldan7,070/sq mi
59Swissvale7,044/sq mi
60Applewold6,984/sq mi
61Shippensburg University6,961/sq mi
62Lincoln University6,921/sq mi
63Mahanoy City6,910/sq mi
64Temple6,891/sq mi
65Chester6,871/sq mi
66Rutledge6,868/sq mi
67Swedesburg6,855/sq mi
68Brentwood6,853/sq mi
69Easton6,821/sq mi
70Bressler6,721/sq mi
71Ridley Park6,716/sq mi
72Minersville6,686/sq mi
73Folsom6,640/sq mi
74Fountain Hill6,542/sq mi
75West View6,517/sq mi
76Sharpsburg6,513/sq mi
77Frackville6,491/sq mi
78Hebron6,477/sq mi
79Arnold6,472/sq mi
80Wilkes-Barre6,457/sq mi
81Souderton6,434/sq mi
82Lebanon6,383/sq mi
83Warminster Heights6,367/sq mi
84Lansdale6,304/sq mi
85Stiles6,292/sq mi
86Wilkinsburg6,288/sq mi
87Sproul6,266/sq mi
88Glenside6,245/sq mi
89Brackenridge6,242/sq mi
90Royersford6,242/sq mi
91Kingston6,212/sq mi
92Harrisburg6,170/sq mi
93East Greenville6,143/sq mi
94Woodlyn6,138/sq mi
95Pitcairn6,063/sq mi
96McSherrystown6,044/sq mi
97Bryn Mawr6,036/sq mi
98Wesleyville6,018/sq mi
99Penndel6,001/sq mi
100Rochester5,858/sq mi

Nationwide

1

Other rankings in Pennsylvania

20

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