51 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Johnstown | 1 | 17,668 | 18,372 | -0.79% | 2,988 | 5.91 | City |
| Patton township | 2 | 15,519 | 15,694 | -0.44% | 631 | 24.61 | Township |
| Cambria township | 3 | 5,638 | 5,773 | -0.46% | 114 | 49.56 | Township |
| Adams township | 4 | 5,591 | 5,745 | -0.57% | 122 | 45.84 | Township |
| Upper Yoder township | 5 | 4,990 | 5,143 | -0.6% | 425 | 11.74 | Township |
| Westmont | 6 | 4,751 | 4,936 | -0.77% | 2,038 | 2.33 | Borough |
| Northern Cambria | 7 | 3,409 | 3,539 | -0.76% | 1,133 | 3.01 | Borough |
| Portage township | 8 | 3,319 | 3,434 | -0.72% | 134 | 24.73 | Township |
| Ebensburg | 9 | 3,289 | 3,408 | -0.72% | 1,961 | 1.68 | Borough |
| Cresson township | 10 | 2,884 | 2,820 | 0.98% | 238 | 12.11 | Township |
| Allegheny township | 11 | 2,722 | 2,834 | -0.77% | 92 | 29.68 | Township |
| Stonycreek township | 12 | 2,645 | 2,746 | -0.71% | 762 | 3.47 | Township |
| Nanty-Glo | 13 | 2,399 | 2,496 | -0.79% | 1,269 | 1.89 | Borough |
| Portage | 14 | 2,348 | 2,447 | -0.84% | 3,552 | 0.66 | Borough |
| Lower Yoder township | 15 | 2,336 | 2,423 | -0.72% | 178 | 13.09 | Township |
| East Taylor township | 16 | 2,332 | 2,417 | -0.72% | 258 | 9.04 | Township |
| Croyle township | 17 | 2,280 | 2,292 | 0.13% | 126 | 18.06 | Township |
| Geistown | 18 | 2,266 | 2,358 | -0.79% | 2,134 | 1.06 | Borough |
| Summerhill township | 19 | 2,227 | 2,292 | -0.54% | 77 | 28.80 | Township |
| Barr township | 20 | 1,993 | 2,039 | -0.5% | 63 | 31.52 | Township |
| Southmont | 21 | 1,964 | 2,044 | -0.81% | 1,867 | 1.05 | Borough |
| Conemaugh township | 22 | 1,879 | 1,927 | -0.42% | 169 | 11.15 | Township |
| Blacklick township | 23 | 1,872 | 1,886 | 0.05% | 60 | 31.18 | Township |
| Patton | 24 | 1,657 | 1,722 | -0.78% | 1,872 | 0.89 | Borough |
| Gallitzin | 25 | 1,466 | 1,525 | -0.81% | 2,053 | 0.71 | Borough |
| Cresson | 26 | 1,462 | 1,522 | -0.81% | 3,059 | 0.48 | Borough |
| Reade township | 27 | 1,415 | 1,438 | -0.28% | 37 | 38.70 | Township |
| East Carroll township | 28 | 1,397 | 1,434 | -0.43% | 56 | 24.94 | Township |
| Gallitzin township | 29 | 1,243 | 1,275 | -0.56% | 73 | 16.97 | Township |
| Summerhill township | 30 | 1,210 | 1,202 | 0.41% | 48 | 25.33 | Township |
| Hastings | 31 | 1,170 | 1,217 | -0.76% | 2,123 | 0.55 | Borough |
| Loretto | 32 | 1,154 | 1,188 | -0.6% | 1,222 | 0.94 | Borough |
| West Carroll township | 33 | 1,145 | 1,177 | -0.52% | 108 | 10.56 | Township |
| East Conemaugh | 34 | 1,040 | 1,082 | -0.76% | 3,782 | 0.28 | Borough |
| Elder township | 35 | 1,008 | 1,030 | -0.49% | 76 | 13.23 | Township |
| Carrolltown | 36 | 998 | 1,037 | -0.8% | 1,490 | 0.67 | Borough |
| Dale | 37 | 948 | 987 | -0.84% | 5,417 | 0.17 | Borough |
| South Fork | 38 | 907 | 944 | -0.77% | 1,985 | 0.46 | Borough |
| Paint | 39 | 874 | 904 | -0.68% | 2,533 | 0.34 | Borough |
| Lilly | 40 | 845 | 874 | -0.7% | 1,667 | 0.51 | Borough |
| Scalp Level | 41 | 716 | 746 | -0.83% | 1,070 | 0.67 | Borough |
| Sankertown | 42 | 603 | 630 | -0.82% | 2,037 | 0.30 | Borough |
| Lorain | 43 | 569 | 594 | -0.87% | 1,683 | 0.34 | Borough |
| Summerhill | 44 | 459 | 476 | -0.65% | 1,434 | 0.32 | Borough |
| Vintondale | 45 | 398 | 413 | -0.75% | 882 | 0.45 | Borough |
| Ashville | 46 | 207 | 211 | -0.48% | 1,169 | 0.18 | Borough |
| Wilmore | 47 | 200 | 209 | -0.99% | 531 | 0.38 | Borough |
| Ehrenfeld | 48 | 196 | 201 | -0.51% | 452 | 0.43 | Borough |
| Cassandra | 49 | 151 | 158 | -0.66% | 1,987 | 0.08 | Borough |
| Chest Springs | 50 | 137 | 142 | -0.73% | 710 | 0.19 | Borough |
| Glasgow | 51 | 66 | 70 | -1.49% | 1,100 | 0.06 | Borough |
Johnstown is the largest city in Cambria County, with a population of 17,668.
Glasgow is the smallest city in Cambria County.
There are 51 cities in Cambria County, Pennsylvania.