Table 1.
The Most Populous Counties and the Most Populous Cities and Townships
in 2010 in Pennsylvania: 2000 and 2010 |
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(For
information on confidentiality protection, nonsampling error, and
definitions, see http://www.census.gov/prod/cen2010/pl94-171.pdf) |
Population
rank |
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Population |
Change,
2000 to 2010 |
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2010 |
2000 |
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Geographic area |
2000 1 |
2010 |
Number |
Percent |
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Pennsylvania
...
. |
12 281 054 |
12 702 379 |
421 325 |
3.4 |
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COUNTY |
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1 |
1 |
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Philadelphia County 2
.. |
1 517 550 |
1 526 006 |
8 456 |
0.6 |
2 |
2 |
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Allegheny County
.. |
1 281 666 |
1 223 348 |
- 58 318 |
-4.6 |
3 |
3 |
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Montgomery County
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750 097 |
799 874 |
49 777 |
6.6 |
4 |
4 |
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Bucks County
..
. |
597 635 |
625 249 |
27 614 |
4.6 |
5 |
5 |
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Delaware County
. |
550 864 |
558 979 |
8 115 |
1.5 |
6 |
6 |
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Lancaster County
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470 658 |
519 445 |
48 787 |
10.4 |
7 |
7 |
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Chester County
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433 501 |
498 886 |
65 385 |
15.1 |
8 |
8 |
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York County
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381 751 |
434 972 |
53 221 |
13.9 |
9 |
9 |
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Berks County
..
.. |
373 638 |
411 442 |
37 804 |
10.1 |
10 |
10 |
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Westmoreland County
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369 993 |
365 169 |
- 4 824 |
-1.3 |
11 |
12 |
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Lehigh County
.. |
312 090 |
349 497 |
37 407 |
12.0 |
12 |
11 |
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Luzerne County
. |
319 250 |
320 918 |
1 668 |
0.5 |
13 |
14 |
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Northampton County
.. |
267 066 |
297 735 |
30 669 |
11.5 |
14 |
13 |
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Erie County
.. |
280 843 |
280 566 |
- 277 |
-0.1 |
15 |
15 |
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Dauphin County
.. |
251 798 |
268 100 |
16 302 |
6.5 |
16 |
16 |
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Cumberland County
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213 674 |
235 406 |
21 732 |
10.2 |
17 |
17 |
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Lackawanna County
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213 295 |
214 437 |
1 142 |
0.5 |
18 |
18 |
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Washington County
..
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202 897 |
207 820 |
4 923 |
2.4 |
19 |
20 |
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Butler County
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174 083 |
183 862 |
9 779 |
5.6 |
20 |
19 |
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Beaver County
. |
181 412 |
170 539 |
- 10 873 |
-6.0 |
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CITY OR TOWNSHIP |
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1 |
1 |
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Philadelphia city 2
..
. |
1 517 550 |
1 526 006 |
8 456 |
0.6 |
2 |
2 |
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Pittsburgh city
..
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334 563 |
305 704 |
- 28 859 |
-8.6 |
3 |
3 |
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Allentown city
..
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106 632 |
118 032 |
11 400 |
10.7 |
4 |
4 |
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Erie city
...
.. |
103 717 |
101 786 |
- 1 931 |
-1.9 |
5 |
6 |
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Reading city
...
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81 207 |
88 082 |
6 875 |
8.5 |
6 |
5 |
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Upper Darby township (Delaware
County)
.. |
81 821 |
82 795 |
974 |
1.2 |
7 |
7 |
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Scranton city
.
.. |
76 415 |
76 089 |
- 326 |
-0.4 |
8 |
8 |
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Bethlehem city
. |
71 329 |
74 982 |
3 653 |
5.1 |
9 |
10 |
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Bensalem township (Bucks
County)
..
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58 434 |
60 427 |
1 993 |
3.4 |
10 |
11 |
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Lancaster city
...
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56 348 |
59 322 |
2 974 |
5.3 |
11 |
9 |
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Lower Merion township (Montgomery
County)
. |
59 850 |
57 825 |
- 2 025 |
-3.4 |
12 |
12 |
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Abington township (Montgomery
County)
.. |
56 103 |
55 310 |
- 793 |
-1.4 |
13 |
13 |
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Bristol township (Bucks
County)
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55 521 |
54 582 |
- 939 |
-1.7 |
14 |
14 |
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Millcreek township (Erie
County)
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52 129 |
53 515 |
1 386 |
2.7 |
15 |
16 |
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Harrisburg city
...
.. |
48 950 |
49 528 |
578 |
1.2 |
16 |
17 |
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Haverford township (Delaware
County)
.. |
48 498 |
48 491 |
- 7 |
- |
17 |
19 |
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Lower Paxton township (Dauphin
County)
. |
44 424 |
47 360 |
2 936 |
6.6 |
18 |
15 |
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Altoona city
.. |
49 523 |
46 320 |
- 3 203 |
-6.5 |
19 |
20 |
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Middletown township (Bucks
County)
.. |
44 141 |
45 436 |
1 295 |
2.9 |
20 |
22 |
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York city
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40 862 |
43 718 |
2 856 |
7.0 |
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-
Represents zero or rounds to 0.0. |
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1 Census 2000 counts are as
published in Census 2000 reports and thus do not include any changes
published subsequently due to boundary changes or to the Count Question
Resolution program. |
2 Philadelphia County and
Philadelphia city are coextensive. |
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Source: U.S. Census
Bureau, Census 2000 Redistricting Data (Public Law 94-171) Summary File,
Table PL1, and 2010 Census Redistricting Data (Public Law 94-171) Summary
File, Table P1. |
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