| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Johnstown | 1 | 17,514 | 18,368 | -0.79% | 2,962 | 6 | City |
| Patton | 2 | 15,558 | 15,664 | -0.42% | 632 | 25 | Township |
| Cambria | 3 | 5,645 | 5,796 | -0.48% | 114 | 50 | Township |
| Adams | 4 | 5,516 | 5,725 | -0.76% | 120 | 46 | Township |
| Upper Yoder | 5 | 4,948 | 5,151 | -0.74% | 422 | 12 | Township |
| Westmont | 6 | 4,709 | 4,928 | -0.8% | 2,020 | 2 | Borough |
| Northern Cambria | 7 | 3,372 | 3,535 | -0.79% | 1,121 | 3 | Borough |
| Portage | 8 | 3,308 | 3,444 | -0.81% | 134 | 25 | Township |
| Ebensburg | 9 | 3,203 | 3,353 | -0.77% | 1,910 | 2 | Borough |
| Cresson | 10 | 2,792 | 2,823 | -0.61% | 231 | 12 | Township |
| Allegheny | 11 | 2,701 | 2,838 | -1.06% | 91 | 30 | Township |
| Stonycreek | 12 | 2,616 | 2,742 | -0.8% | 754 | 3 | Township |
| Nanty-Glo | 13 | 2,394 | 2,507 | -0.79% | 1,266 | 2 | Borough |
| Portage | 14 | 2,325 | 2,439 | -0.81% | 3,517 | 1 | Borough |
| East Taylor | 15 | 2,323 | 2,430 | -0.9% | 257 | 9 | Township |
| Lower Yoder | 16 | 2,315 | 2,422 | -0.86% | 177 | 13 | Township |
| Croyle | 17 | 2,258 | 2,315 | -0.75% | 125 | 18 | Township |
| Geistown | 18 | 2,245 | 2,353 | -0.8% | 2,114 | 1 | Borough |
| Summerhill | 19 | 2,212 | 2,303 | -0.85% | 77 | 29 | Township |
| Barr | 20 | 1,988 | 2,042 | -0.4% | 63 | 32 | Township |
| Southmont | 21 | 1,941 | 2,038 | -0.82% | 1,845 | 1 | Borough |
| Conemaugh | 22 | 1,870 | 1,934 | -0.53% | 168 | 11 | Township |
| Blacklick | 23 | 1,821 | 1,874 | -0.55% | 58 | 31 | Township |
| Patton | 24 | 1,643 | 1,721 | -0.79% | 1,856 | 1 | Borough |
| Cresson | 25 | 1,454 | 1,521 | -0.75% | 3,042 | 0 | Borough |
| Gallitzin | 26 | 1,453 | 1,525 | -0.82% | 2,035 | 1 | Borough |
| East Carroll | 27 | 1,410 | 1,445 | -0.21% | 57 | 25 | Township |
| Reade | 28 | 1,391 | 1,439 | -0.78% | 36 | 39 | Township |
| Gallitzin | 29 | 1,242 | 1,274 | -0.64% | 73 | 17 | Township |
| Summerhill | 30 | 1,204 | 1,203 | 0.08% | 48 | 25 | Township |
| Hastings | 31 | 1,158 | 1,214 | -0.86% | 2,102 | 1 | Borough |
| West Carroll | 32 | 1,132 | 1,177 | -0.7% | 107 | 11 | Township |
| Loretto | 33 | 1,121 | 1,192 | -1.23% | 1,188 | 1 | Borough |
| East Conemaugh | 34 | 1,025 | 1,077 | -0.87% | 3,727 | 0 | Borough |
| Elder | 35 | 1,013 | 1,034 | -0.3% | 77 | 13 | Township |
| Carrolltown | 36 | 990 | 1,039 | -0.8% | 1,478 | 1 | Borough |
| Dale | 37 | 939 | 985 | -0.84% | 5,366 | 0 | Borough |
| South Fork | 38 | 899 | 944 | -0.88% | 1,967 | 0 | Borough |
| Paint | 39 | 868 | 905 | -0.8% | 2,516 | 0 | Borough |
| Lilly | 40 | 836 | 870 | -0.71% | 1,649 | 1 | Borough |
| Scalp Level | 41 | 710 | 746 | -0.84% | 1,061 | 1 | Borough |
| West Taylor | 42 | 701 | 735 | -0.99% | 115 | 6 | Township |
| Munster | 43 | 633 | 659 | -0.78% | 44 | 14 | Township |
| Middle Taylor | 44 | 629 | 658 | -0.79% | 137 | 5 | Township |
| Sankertown | 45 | 609 | 630 | -0.65% | 2,057 | 0 | Borough |
| Lorain | 46 | 563 | 592 | -0.88% | 1,666 | 0 | Borough |
| Chest | 47 | 478 | 471 | 0.84% | 17 | 29 | Township |
| Summerhill | 48 | 457 | 480 | -0.87% | 1,428 | 0 | Borough |
| Vintondale | 49 | 396 | 416 | -0.75% | 878 | 0 | Borough |
| Dean | 50 | 324 | 329 | -0.31% | 16 | 21 | Township |
| Ashville | 51 | 205 | 211 | -0.49% | 1,158 | 0 | Borough |
| Wilmore | 52 | 196 | 206 | -1.01% | 520 | 0 | Borough |
| Ehrenfeld | 53 | 195 | 201 | -0.51% | 449 | 0 | Borough |
| Portage | 54 | 153 | 160 | -0.65% | 4.0 | 38 | Township |
| Cassandra | 55 | 151 | 159 | -1.31% | 1,987 | 0 | Borough |
| Portage | 56 | 149 | 166 | -3.25% | 10 | 14 | Township |
| Chest Springs | 57 | 132 | 138 | -0.75% | 684 | 0 | Borough |
| Glasgow | 58 | 67 | 70 | -1.47% | 1,117 | 0 | Borough |
Johnstown is the largest city in Cambria County, with a population of 17,514.
Glasgow is the smallest city in Cambria County, with a population of 67.
There are 58 cities in Cambria County, Pennsylvania.