| Rank | City | 2019 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Philadelphia | 1,584,138 | 0.5% |
| 2 | Pittsburgh | 301,048 | -0.2% |
| 3 | Allentown | 121,433 | 0.4% |
| 4 | Erie | 96,471 | -0.7% |
| 5 | Reading | 88,495 | 0.1% |
| 6 | Scranton | 77,182 | 0.2% |
| 7 | Bethlehem | 75,790 | 0.1% |
| 8 | Lancaster | 59,420 | 0.0% |
| 9 | Harrisburg | 49,229 | -0.1% |
| 10 | York | 44,118 | 0.1% |
| 11 | Altoona | 43,702 | -0.7% |
| 12 | State College | 42,352 | 0.1% |
| 13 | Wilkes-Barre | 40,806 | -0.2% |
| 14 | Norristown | 34,422 | 0.0% |
| 15 | Chester | 33,909 | -0.0% |
| 16 | Bethel Park | 32,501 | 0.1% |
| 17 | Williamsport | 28,348 | -0.4% |
| 18 | Monroeville | 27,529 | -0.4% |
| 19 | Easton | 27,216 | 0.2% |
| 20 | Plum | 27,135 | 0.0% |
| 21 | Lebanon | 25,902 | 0.2% |
| 22 | Hazleton | 24,703 | -0.3% |
| 23 | Pottstown | 22,667 | 0.2% |
| 24 | New Castle | 21,797 | -0.8% |
| 25 | Chambersburg | 21,029 | 0.5% |
| 26 | West Chester | 20,048 | 1.0% |
| 27 | Murrysville | 19,704 | -0.2% |
| 28 | West Mifflin | 19,703 | -0.4% |
| 29 | Baldwin | 19,464 | -0.2% |
| 30 | Johnstown | 19,447 | -0.9% |
| 31 | Carlisle | 19,196 | 0.3% |
| 32 | McKeesport | 19,115 | -0.4% |
| 33 | Phoenixville | 16,957 | 0.4% |
| 34 | Lansdale | 16,707 | 0.3% |
| 35 | Hanover | 15,660 | 0.3% |
| 36 | Hermitage | 15,535 | -0.5% |
| 37 | Wilkinsburg | 15,448 | -0.4% |
| 38 | Franklin Park | 14,749 | 1.1% |
| 39 | Greensburg | 14,192 | -0.6% |
| 40 | Bloomsburg | 13,919 | -0.8% |
| 41 | Ephrata | 13,874 | 0.4% |
| 42 | Whitehall | 13,648 | -0.3% |
| 43 | Pottsville | 13,555 | -0.7% |
| 44 | Washington | 13,508 | -0.1% |
| 45 | Coatesville | 13,114 | 0.0% |
| 46 | Dunmore | 13,110 | -0.9% |
| 47 | Sharon | 13,109 | -0.9% |
| 48 | Indiana | 13,078 | -0.8% |
| 49 | Butler | 12,993 | -0.7% |
| 50 | Kingston | 12,862 | -0.3% |
| 51 | Meadville | 12,721 | -0.6% |
| 52 | New Kensington | 12,363 | -0.7% |
| 53 | St. Marys | 12,359 | -0.7% |
| 54 | Yeadon | 11,471 | 0.0% |
| 55 | Elizabethtown | 11,450 | -0.1% |
| 56 | Emmaus | 11,446 | 0.3% |
| 57 | Lower Burrell | 11,150 | -0.7% |
| 58 | Jefferson Hills | 11,148 | 0.6% |
| 59 | Munhall | 11,081 | -0.4% |
| 60 | Waynesboro | 10,874 | 0.4% |
| 61 | Darby | 10,678 | -0.0% |
| 62 | Lansdowne | 10,621 | 0.0% |
| 63 | Wyomissing | 10,499 | 0.0% |
| 64 | East Stroudsburg | 10,384 | 0.7% |
| 65 | Columbia | 10,369 | -0.0% |
| 66 | Nanticoke | 10,334 | -0.2% |
| 67 | Berwick | 10,002 | -0.6% |
| 68 | Northampton | 9,922 | -0.0% |
| 69 | Uniontown | 9,835 | -0.7% |
| 70 | Oil City | 9,749 | -1.0% |
| 71 | Bristol | 9,598 | -0.2% |
| 72 | Lititz | 9,458 | 0.1% |
| 73 | Sunbury | 9,409 | -0.6% |
| 74 | Brentwood | 9,329 | -0.4% |
| 75 | Middletown | 9,283 | 0.5% |
| 76 | Jeannette | 9,133 | -0.7% |
| 77 | Warren | 9,124 | -0.8% |
| 78 | Economy | 9,114 | 0.2% |
| 79 | Lock Haven | 9,108 | -0.9% |
| 80 | Mechanicsburg | 8,992 | 0.0% |
| 81 | Aliquippa | 8,908 | -0.7% |
| 82 | Quakertown | 8,814 | -0.2% |
| 83 | Canonsburg | 8,811 | -0.3% |
| 84 | Collingdale | 8,772 | -0.0% |
| 85 | Swissvale | 8,689 | -0.4% |
| 86 | Perkasie | 8,607 | 0.1% |
| 87 | Morrisville | 8,544 | -0.3% |
| 88 | Carbondale | 8,441 | -0.6% |
| 89 | Millersville | 8,388 | 0.3% |
| 90 | Beaver Falls | 8,387 | -0.9% |
| 91 | Dormont | 8,319 | -0.4% |
| 92 | Doylestown | 8,297 | -0.1% |
| 93 | Bradford | 8,280 | -0.7% |
| 94 | Castle Shannon | 8,255 | -0.1% |
| 95 | Mount Joy | 8,201 | 1.3% |
| 96 | Lewistown | 8,156 | -0.3% |
| 97 | Bellevue | 8,097 | -0.4% |
| 98 | Pleasant Hills | 8,084 | -0.3% |
| 99 | Conshohocken | 8,065 | 0.4% |
| 100 | Brookhaven | 8,026 | 0.0% |
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