150 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pittsburgh | 1 | 308,885 | 302,798 | 0.4% | 5,578 | 55 | City |
| Penn Hills | 2 | 39,466 | 40,998 | -0.43% | 2,062 | 19 | Township |
| Mount Lebanon | 3 | 32,761 | 34,022 | -0.47% | 5,390 | 6 | Township |
| Ross | 4 | 32,348 | 33,531 | -0.34% | 2,235 | 14 | Township |
| Bethel Park | 5 | 32,091 | 33,515 | -0.88% | 2,742 | 12 | Township |
| McCandless | 6 | 28,576 | 29,665 | -0.38% | 1,733 | 16 | Township |
| Monroeville | 7 | 27,794 | 28,653 | -0.62% | 1,410 | 20 | Township |
| Shaler | 8 | 26,987 | 28,083 | -0.45% | 2,438 | 11 | Township |
| Moon | 9 | 26,814 | 27,214 | 0.23% | 1,123 | 24 | Township |
| Plum | 10 | 26,240 | 27,140 | -0.68% | 918 | 29 | Borough |
| Allison Park | 11 | 22,988 | 22,623 | 0.42% | 1,659 | 14 | CDP |
| Upper St. Clair | 12 | 20,573 | 21,143 | -0.23% | 2,096 | 10 | Township |
| Baldwin | 13 | 20,518 | 21,487 | -0.94% | 3,556 | 6 | Borough |
| West Mifflin | 14 | 18,734 | 19,571 | -0.89% | 1,318 | 14 | Borough |
| South Fayette | 15 | 18,665 | 18,351 | 0.43% | 919 | 20 | Township |
| Hampton | 16 | 17,904 | 18,467 | -0.31% | 1,105 | 16 | Township |
| McKeesport | 17 | 16,972 | 17,707 | -0.86% | 3,361 | 5 | City |
| Scott | 18 | 16,939 | 17,619 | -0.42% | 4,350 | 4 | Township |
| North Fayette | 19 | 15,976 | 16,195 | -0.3% | 634 | 25 | Township |
| Pine | 20 | 15,629 | 14,743 | 0.59% | 921 | 17 | Township |
| Franklin Park | 21 | 14,975 | 15,493 | -0.69% | 1,106 | 14 | Borough |
| Carnot-Moon | 22 | 13,838 | 12,242 | 1.2% | 2,314 | 6 | CDP |
| South Park | 23 | 13,707 | 13,718 | 0.01% | 1,468 | 9 | Township |
| Wilkinsburg | 24 | 13,668 | 14,327 | -0.96% | 6,067 | 2 | Borough |
| Elizabeth | 25 | 12,462 | 12,956 | -0.42% | 547 | 23 | Township |
| West Deer | 26 | 12,318 | 12,270 | 0.62% | 426 | 29 | Township |
| Jefferson Hills | 27 | 12,257 | 12,426 | -0.28% | 739 | 17 | Borough |
| Lower Burrell | 28 | 11,491 | 11,745 | -0.44% | 1,020 | 11 | City |
| Marshall | 29 | 10,595 | 10,153 | 1.99% | 686 | 15 | Township |
| Munhall | 30 | 10,272 | 10,764 | -0.95% | 4,480 | 2 | Borough |
| Harrison | 31 | 9,741 | 10,158 | -0.46% | 1,319 | 7 | Township |
| North Versailles | 32 | 9,645 | 10,061 | -0.51% | 1,205 | 8 | Township |
| Brentwood | 33 | 9,611 | 10,075 | -0.96% | 6,633 | 1 | Borough |
| Glenshaw | 34 | 9,527 | 8,791 | 0.38% | 3,049 | 3 | CDP |
| Collier | 35 | 9,067 | 8,944 | 0.59% | 666 | 14 | Township |
| Economy | 36 | 8,967 | 9,079 | -0.26% | 502 | 18 | Borough |
| O'Hara | 37 | 8,963 | 9,274 | -0.27% | 1,278 | 7 | Township |
| Kennedy | 38 | 8,406 | 8,697 | -0.39% | 1,533 | 5 | Township |
| Findlay | 39 | 8,384 | 6,411 | 12.12% | 260 | 32 | Township |
| Pleasant Hills | 40 | 8,275 | 8,490 | -0.52% | 2,981 | 3 | Borough |
| Swissvale | 41 | 8,199 | 8,603 | -0.98% | 6,799 | 1 | Borough |
| Castle Shannon | 42 | 8,046 | 8,286 | -0.59% | 5,035 | 2 | Borough |
| Bellevue | 43 | 7,920 | 8,300 | -0.95% | 7,842 | 1 | Borough |
| Dormont | 44 | 7,845 | 8,227 | -0.97% | 10,322 | 1 | Borough |
| Carnegie | 45 | 7,789 | 8,118 | -0.84% | 4,805 | 2 | Borough |
| Ohio | 46 | 7,374 | 7,172 | 0.6% | 1,076 | 7 | Township |
| White Oak | 47 | 7,283 | 7,625 | -0.94% | 1,100 | 7 | Borough |
| Oakmont | 48 | 6,593 | 6,765 | -0.53% | 4,162 | 2 | Borough |
| West View | 49 | 6,364 | 6,673 | -0.96% | 6,301 | 1 | Borough |
| Stowe | 50 | 6,156 | 6,423 | -0.5% | 3,106 | 2 | Township |
| Forest Hills | 51 | 6,127 | 6,419 | -0.95% | 3,915 | 2 | Borough |
| Wilkins | 52 | 6,088 | 6,344 | -0.47% | 2,221 | 3 | Township |
| Clairton | 53 | 5,888 | 6,172 | -0.96% | 2,126 | 3 | City |
| Crafton | 54 | 5,806 | 6,088 | -0.97% | 5,084 | 1 | Borough |
| McKees Rocks | 55 | 5,640 | 5,909 | -0.95% | 5,341 | 1 | Borough |
| Sewickley | 56 | 5,534 | 5,644 | -0.34% | 207 | 27 | Township |
| Coraopolis | 57 | 5,289 | 5,544 | -0.96% | 3,977 | 1 | Borough |
| Fox Chapel | 58 | 5,146 | 5,338 | -0.75% | 654 | 8 | Borough |
| Duquesne | 59 | 5,031 | 5,246 | -0.85% | 2,770 | 2 | City |
| Turtle Creek | 60 | 4,878 | 5,112 | -0.95% | 5,013 | 1 | Borough |
| Green Tree | 61 | 4,706 | 4,930 | -0.95% | 2,268 | 2 | Borough |
| Arnold | 62 | 4,630 | 4,764 | -0.58% | 6,325 | 1 | City |
| Bridgeville | 63 | 4,576 | 4,794 | -0.95% | 4,179 | 1 | Borough |
| Avalon | 64 | 4,550 | 4,768 | -0.96% | 7,374 | 1 | Borough |
| Glassport | 65 | 4,256 | 4,464 | -0.98% | 2,690 | 2 | Borough |
| Level Green | 66 | 4,170 | 3,957 | 0.24% | 1,097 | 4 | CDP |
| Tarentum | 67 | 4,143 | 4,343 | -0.96% | 3,368 | 1 | Borough |
| North Braddock | 68 | 4,108 | 4,311 | -0.99% | 2,753 | 1 | Borough |
| Elizabeth | 69 | 3,960 | 3,980 | -0.2% | 228 | 17 | Township |
| Sewickley | 70 | 3,737 | 3,901 | -0.88% | 3,741 | 1 | Borough |
| Port Vue | 71 | 3,535 | 3,670 | -0.76% | 3,117 | 1 | Borough |
| Etna | 72 | 3,272 | 3,430 | -0.97% | 4,446 | 1 | Borough |
| Springdale | 73 | 3,241 | 3,395 | -0.95% | 3,470 | 1 | Borough |
| Mount Oliver | 74 | 3,227 | 3,385 | -0.98% | 9,519 | 0 | Borough |
| Millvale | 75 | 3,226 | 3,370 | -0.89% | 5,212 | 1 | Borough |
| Ingram | 76 | 3,224 | 3,383 | -0.98% | 7,429 | 0 | Borough |
| Bakerstown | 77 | 3,134 | 3,016 | 3.02% | 1,291 | 2 | CDP |
| Reserve | 78 | 3,133 | 3,247 | -0.44% | 1,518 | 2 | Township |
| Brackenridge | 79 | 3,096 | 3,240 | -0.93% | 6,035 | 1 | Borough |
| Sharpsburg | 80 | 3,033 | 3,181 | -0.98% | 6,280 | 0 | Borough |
| Harmar | 81 | 3,007 | 3,129 | -0.46% | 513 | 6 | Township |
| Churchill | 82 | 3,006 | 3,151 | -0.96% | 1,374 | 2 | Borough |
| Edgewood | 83 | 3,006 | 3,136 | -0.86% | 5,112 | 1 | Borough |
| Pitcairn | 84 | 2,954 | 3,101 | -1.01% | 5,838 | 1 | Borough |
| Forward | 85 | 2,929 | 3,061 | -0.58% | 155 | 19 | Township |
| Gibsonia | 86 | 2,912 | 2,372 | 0.41% | 757 | 4 | CDP |
| Seven Fields | 87 | 2,846 | 2,919 | -0.52% | 3,535 | 1 | Borough |
| Homestead | 88 | 2,844 | 2,881 | -0.28% | 4,938 | 1 | Borough |
| Imperial | 89 | 2,785 | 2,569 | 0.61% | 878 | 3 | CDP |
| Aspinwall | 90 | 2,776 | 2,911 | -0.96% | 7,909 | 0 | Borough |
| Cecil-Bishop | 91 | 2,736 | 2,202 | 0.63% | 987 | 3 | CDP |
| Emsworth | 92 | 2,402 | 2,520 | -0.99% | 4,221 | 1 | Borough |
| Crescent | 93 | 2,382 | 2,479 | -0.5% | 1,139 | 2 | Township |
| Verona | 94 | 2,380 | 2,494 | -0.96% | 4,694 | 1 | Borough |
| Morgan | 95 | 2,158 | 2,327 | -1.69% | 87 | 25 | Township |
| Fawn | 96 | 2,117 | 2,191 | -0.33% | 165 | 13 | Township |
| McDonald | 97 | 2,002 | 2,055 | -0.55% | 3,865 | 1 | Borough |
| East McKeesport | 98 | 1,971 | 2,069 | -1% | 4,772 | 0 | Borough |
| Rankin | 99 | 1,915 | 1,888 | 0.26% | 4,423 | 0 | Borough |
| Baldwin | 100 | 1,912 | 1,983 | -0.42% | 3,786 | 1 | Township |
| East Pittsburgh | 101 | 1,837 | 1,926 | -0.97% | 4,735 | 0 | Borough |
| Ben Avon | 102 | 1,823 | 1,912 | -0.98% | 4,810 | 0 | Borough |
| Greenock | 103 | 1,820 | 1,836 | -1.36% | 1,707 | 1 | CDP |
| West Homestead | 104 | 1,788 | 1,868 | -0.89% | 1,939 | 1 | Borough |
| Baidland | 105 | 1,787 | 1,520 | 0.85% | 834 | 2 | CDP |
| Wilmerding | 106 | 1,703 | 1,782 | -0.93% | 3,970 | 0 | Borough |
| Braddock | 107 | 1,656 | 1,721 | -0.78% | 2,941 | 1 | Borough |
| Braddock Hills | 108 | 1,650 | 1,732 | -1.02% | 1,741 | 1 | Borough |
| Edgeworth | 109 | 1,619 | 1,677 | -0.74% | 1,082 | 1 | Borough |
| Cheswick | 110 | 1,596 | 1,670 | -0.93% | 3,447 | 0 | Borough |
| Leet | 111 | 1,556 | 1,618 | -0.45% | 1,036 | 2 | Township |
| Dravosburg | 112 | 1,537 | 1,609 | -0.97% | 1,591 | 1 | Borough |
| Springdale | 113 | 1,467 | 1,534 | -0.61% | 651 | 2 | Township |
| Bell Acres | 114 | 1,458 | 1,506 | -0.68% | 272 | 5 | Borough |
| East Deer | 115 | 1,425 | 1,488 | -0.56% | 627 | 2 | Township |
| Oakdale | 116 | 1,414 | 1,477 | -0.91% | 3,015 | 0 | Borough |
| Versailles | 117 | 1,410 | 1,479 | -0.98% | 2,913 | 0 | Borough |
| Blawnox | 118 | 1,386 | 1,454 | -1% | 4,682 | 0 | Borough |
| Elizabeth | 119 | 1,347 | 1,395 | -0.74% | 3,927 | 0 | Borough |
| Sturgeon | 120 | 1,331 | 1,275 | -1.84% | 1,188 | 1 | CDP |
| Enlow | 121 | 1,253 | 885 | 1.29% | 1,743 | 1 | CDP |
| Heidelberg | 122 | 1,228 | 1,287 | -0.97% | 4,279 | 0 | Borough |
| Frazer | 123 | 1,220 | 1,162 | -0.49% | 131 | 9 | Township |
| Russellton | 124 | 1,170 | 1,062 | -1.52% | 811 | 1 | CDP |
| Bradford Woods | 125 | 1,130 | 1,185 | -0.96% | 1,268 | 1 | Borough |
| Whitaker | 126 | 1,124 | 1,178 | -0.97% | 3,797 | 0 | Borough |
| Leetsdale | 127 | 1,109 | 1,158 | -0.89% | 1,110 | 1 | Borough |
| Neville | 128 | 1,060 | 1,105 | -0.47% | 692 | 2 | Township |
| Rennerdale | 129 | 906 | 865 | -1.74% | 1,145 | 1 | CDP |
| Lincoln | 130 | 886 | 930 | -1.01% | 185 | 5 | Borough |
| Harwick | 131 | 853 | 882 | -0.35% | 1,930 | 0 | CDP |
| Curtisville | 132 | 830 | 1,144 | -1.89% | 583 | 1 | CDP |
| Sewickley Heights | 133 | 817 | 849 | -0.85% | 112 | 7 | Borough |
| North Irwin | 134 | 810 | 822 | -0.37% | 4,010 | 0 | Borough |
| Kilbuck | 135 | 742 | 776 | -0.54% | 293 | 3 | Township |
| Chalfant | 136 | 711 | 746 | -0.97% | 4,500 | 0 | Borough |
| Sewickley Hills | 137 | 685 | 692 | -0.29% | 278 | 2 | Borough |
| Pennsbury Village | 138 | 643 | 675 | -1.08% | 8,573 | 0 | Borough |
| Bairdford | 139 | 642 | 524 | -0.62% | 409 | 2 | CDP |
| Glen Osborne | 140 | 563 | 588 | -0.88% | 1,309 | 0 | Borough |
| Noblestown | 141 | 521 | 421 | -0.76% | 431 | 1 | CDP |
| Wall | 142 | 490 | 515 | -1.01% | 1,121 | 0 | Borough |
| Thornburg | 143 | 445 | 465 | -0.89% | 1,016 | 0 | Borough |
| Rosslyn Farms | 144 | 421 | 440 | -0.94% | 759 | 1 | Borough |
| West Elizabeth | 145 | 383 | 403 | -1.03% | 2,140 | 0 | Borough |
| Ben Avon Heights | 146 | 380 | 398 | -1.04% | 2,184 | 0 | Borough |
| South Versailles | 147 | 300 | 316 | -0.99% | 346 | 1 | Township |
| Boston | 148 | 215 | 287 | -9.28% | 653 | 0 | CDP |
| Glenfield | 149 | 198 | 208 | -1% | 241 | 1 | Borough |
| Haysville | 150 | 78 | 82 | -1.27% | 451 | 0 | Borough |
Pittsburgh is the largest city in Allegheny County, with a population of 308,885.
Haysville is the smallest city in Allegheny County, with a population of 78.
There are 150 cities in Allegheny County, Pennsylvania.