| Rank | City | 2002 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Philadelphia | 1,512,507 | -0.1% |
| 2 | Pittsburgh | 330,439 | -1.0% |
| 3 | Allentown | 106,377 | -0.2% |
| 4 | Erie | 103,811 | 0.1% |
| 5 | Reading | 80,823 | -0.6% |
| 6 | Scranton | 75,183 | -0.9% |
| 7 | Bethlehem | 71,127 | -0.2% |
| 8 | Lancaster | 56,349 | -0.7% |
| 9 | Altoona | 48,928 | -1.0% |
| 10 | Harrisburg | 48,550 | -0.7% |
| 11 | Wilkes-Barre | 42,383 | -1.4% |
| 12 | York | 40,981 | -0.7% |
| 13 | State College | 38,147 | -0.6% |
| 14 | Chester | 36,976 | 0.3% |
| 15 | Bethel Park | 33,205 | -0.8% |
| 16 | Norristown | 31,371 | 0.1% |
| 17 | Williamsport | 30,293 | -1.1% |
| 18 | Monroeville | 29,028 | -0.8% |
| 19 | Plum | 26,898 | -0.1% |
| 20 | Easton | 26,124 | -0.4% |
| 21 | New Castle | 25,905 | -1.4% |
| 22 | Lebanon | 24,246 | -0.8% |
| 23 | McKeesport | 23,745 | -0.7% |
| 24 | Johnstown | 23,447 | -1.6% |
| 25 | Hazleton | 22,946 | -1.4% |
| 26 | West Mifflin | 21,955 | -0.9% |
| 27 | Pottstown | 21,846 | -0.2% |
| 28 | Baldwin | 19,619 | -1.0% |
| 29 | Murrysville | 18,875 | 0.3% |
| 30 | Wilkinsburg | 18,467 | -1.1% |
| 31 | Carlisle | 18,215 | 0.4% |
| 32 | West Chester | 17,824 | -0.3% |
| 33 | Chambersburg | 17,773 | -0.4% |
| 34 | Hermitage | 16,384 | 1.1% |
| 35 | Lansdale | 16,093 | 0.1% |
| 36 | Sharon | 16,039 | -1.5% |
| 37 | Greensburg | 15,733 | -0.8% |
| 38 | Pottsville | 15,304 | -1.3% |
| 39 | Indiana | 15,065 | 0.5% |
| 40 | Washington | 14,981 | -1.3% |
| 41 | Butler | 14,966 | -0.9% |
| 42 | Phoenixville | 14,738 | -0.4% |
| 43 | Hanover | 14,668 | 0.7% |
| 44 | New Kensington | 14,497 | -1.1% |
| 45 | St. Marys | 14,354 | -0.8% |
| 46 | Whitehall | 14,272 | -1.1% |
| 47 | Dunmore | 14,235 | -0.5% |
| 48 | Kingston | 13,622 | -1.4% |
| 49 | Meadville | 13,610 | -0.4% |
| 50 | Ephrata | 13,136 | -0.4% |
| 51 | Lower Burrell | 12,524 | -0.6% |
| 52 | Bloomsburg | 12,490 | 1.2% |
| 53 | Uniontown | 12,331 | -0.7% |
| 54 | Munhall | 11,991 | -1.1% |
| 55 | Elizabethtown | 11,889 | 0.1% |
| 56 | Yeadon | 11,690 | -0.5% |
| 57 | Franklin Park | 11,464 | 0.3% |
| 58 | Aliquippa | 11,459 | -1.5% |
| 59 | Oil City | 11,378 | -0.9% |
| 60 | Emmaus | 11,275 | -0.3% |
| 61 | Lansdowne | 10,977 | -0.5% |
| 62 | Coatesville | 10,910 | 0.4% |
| 63 | Nanticoke | 10,760 | -1.4% |
| 64 | Berwick | 10,627 | -1.0% |
| 65 | Jeannette | 10,530 | -1.0% |
| 66 | Sunbury | 10,430 | -1.5% |
| 67 | Wyomissing | 10,381 | -0.4% |
| 68 | Brentwood | 10,317 | -1.1% |
| 69 | Columbia | 10,282 | -0.4% |
| 70 | Darby | 10,233 | -0.5% |
| 71 | Warren | 10,091 | -1.3% |
| 72 | Morrisville | 9,964 | -0.6% |
| 73 | Bristol | 9,959 | 0.2% |
| 74 | East Stroudsburg | 9,955 | 0.5% |
| 75 | Beaver Falls | 9,708 | -1.8% |
| 76 | Jefferson Hills | 9,674 | -0.3% |
| 77 | Carbondale | 9,667 | -1.1% |
| 78 | Waynesboro | 9,577 | -0.4% |
| 79 | Swissvale | 9,514 | -1.1% |
| 80 | Northampton | 9,388 | -0.1% |
| 81 | Economy | 9,301 | -0.6% |
| 82 | Dormont | 9,202 | -1.2% |
| 83 | Lock Haven | 9,114 | -0.3% |
| 84 | Middletown | 9,057 | -0.5% |
| 85 | Lititz | 9,011 | -0.2% |
| 86 | Bradford | 9,007 | -1.4% |
| 87 | Mechanicsburg | 8,963 | -0.7% |
| 88 | Lewistown | 8,918 | -0.7% |
| 89 | Connellsville | 8,910 | -1.7% |
| 90 | Quakertown | 8,873 | -0.6% |
| 91 | Latrobe | 8,868 | -1.1% |
| 92 | Perkasie | 8,842 | – |
| 93 | Old Forge | 8,700 | -0.9% |
| 94 | Bellevue | 8,672 | -1.1% |
| 95 | Collingdale | 8,607 | -0.5% |
| 96 | Canonsburg | 8,589 | -0.2% |
| 97 | Ellwood City | 8,567 | -1.4% |
| 98 | Monessen | 8,551 | -1.1% |
| 99 | Pleasant Hills | 8,548 | -1.0% |
| 100 | Castle Shannon | 8,516 | -1.1% |
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