56 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| White | 1 | 14,650 | 15,333 | -1.14% | 346 | 42 | Township |
| North Union | 2 | 11,281 | 11,824 | -0.65% | 291 | 39 | Township |
| South Union | 3 | 10,236 | 10,871 | -0.89% | 611 | 17 | Township |
| Uniontown | 4 | 9,346 | 9,969 | -1.1% | 4,559 | 2 | City |
| Smithfield | 5 | 7,838 | 7,970 | -0.19% | 342 | 23 | Township |
| Connellsville | 6 | 6,512 | 7,022 | -1.29% | 2,984 | 2 | City |
| Bullskin | 7 | 6,395 | 6,735 | -0.73% | 145 | 44 | Township |
| Dunbar | 8 | 6,330 | 6,653 | -0.69% | 107 | 59 | Township |
| Georges | 9 | 6,008 | 6,341 | -0.76% | 126 | 48 | Township |
| Redstone | 10 | 4,832 | 5,064 | -0.64% | 212 | 23 | Township |
| German | 11 | 4,417 | 4,665 | -0.79% | 132 | 33 | Township |
| Smithfield | 12 | 4,248 | 4,622 | -0.84% | 772 | 6 | Township |
| Menallen | 13 | 3,973 | 4,085 | -0.53% | 186 | 21 | Township |
| Wharton | 14 | 3,318 | 3,352 | -0.3% | 36 | 92 | Township |
| Masontown | 15 | 3,097 | 3,265 | -0.9% | 2,072 | 1 | Borough |
| Saltlick | 16 | 2,894 | 3,037 | -0.65% | 77 | 38 | Township |
| Springhill | 17 | 2,586 | 2,723 | -0.73% | 77 | 34 | Township |
| Perry | 18 | 2,225 | 2,338 | -0.71% | 109 | 20 | Township |
| Oliver | 19 | 2,122 | 2,044 | 0.86% | 258 | 8 | Township |
| Brownsville | 20 | 2,060 | 2,176 | -0.91% | 2,108 | 1 | Borough |
| Oliver | 21 | 2,028 | 2,062 | -0.29% | 58 | 35 | Township |
| Connellsville | 22 | 1,974 | 2,072 | -0.7% | 174 | 11 | Township |
| South Connellsville | 23 | 1,808 | 1,913 | -0.93% | 1,076 | 2 | Borough |
| North Belle Vernon | 24 | 1,807 | 1,872 | -0.61% | 4,302 | 0 | Borough |
| Fairchance | 25 | 1,785 | 1,877 | -0.83% | 1,504 | 1 | Borough |
| Farmington | 26 | 1,724 | 1,776 | -0.4% | 28 | 62 | Township |
| Upper Tyrone | 27 | 1,675 | 1,763 | -0.71% | 215 | 8 | Township |
| Henry Clay | 28 | 1,668 | 1,763 | -0.71% | 33 | 51 | Township |
| Perryopolis | 29 | 1,580 | 1,702 | -1.25% | 1,078 | 1 | Borough |
| Smithfield | 30 | 1,454 | 1,452 | -0.14% | 35 | 42 | Township |
| White | 31 | 1,277 | 1,315 | -0.23% | 1,843 | 1 | Township |
| Farmington | 32 | 1,255 | 1,281 | -0.24% | 37 | 34 | Township |
| Point Marion | 33 | 1,091 | 1,153 | -0.91% | 2,694 | 0 | Borough |
| Speers | 34 | 1,051 | 1,080 | -0.47% | 1,105 | 1 | Borough |
| Lower Tyrone | 35 | 1,019 | 1,068 | -0.68% | 64 | 16 | Township |
| Oliver | 36 | 971 | 1,006 | -0.51% | 32 | 30 | Township |
| Belle Vernon | 37 | 970 | 1,024 | -0.92% | 3,716 | 0 | Borough |
| West Brownsville | 38 | 962 | 976 | -0.21% | 741 | 1 | Borough |
| Dunbar | 39 | 959 | 1,013 | -0.93% | 1,659 | 1 | Borough |
| White | 40 | 906 | 915 | 0.11% | 45 | 20 | Township |
| New Salem | 41 | 837 | 821 | 0.36% | 1,770 | 0 | Borough |
| Smithfield | 42 | 782 | 830 | -1.01% | 1,092 | 1 | Borough |
| Everson | 43 | 729 | 767 | -0.82% | 3,375 | 0 | Borough |
| Farmington | 44 | 660 | 663 | -0.15% | 21 | 32 | Township |
| Stewart | 45 | 626 | 619 | 0.97% | 12 | 50 | Township |
| Brownsville | 46 | 509 | 534 | -0.59% | 338 | 2 | Township |
| Newell | 47 | 486 | 513 | -0.82% | 827 | 1 | Borough |
| Fayette City | 48 | 475 | 504 | -1.04% | 2,140 | 0 | Borough |
| Vanderbilt | 49 | 390 | 411 | -0.76% | 2,108 | 0 | Borough |
| Dawson | 50 | 331 | 351 | -0.9% | 1,913 | 0 | Borough |
| Markleysburg | 51 | 235 | 243 | -0.42% | 791 | 0 | Borough |
| Allison | 52 | 229 | 229 | 0% | 150 | 2 | Township |
| Casselman | 53 | 125 | 101 | 3.31% | 622 | 0 | Borough |
| New Centerville | 54 | 121 | 127 | -0.82% | 852 | 0 | Borough |
| Ohiopyle | 55 | 35 | 38 | 0% | 84 | 0 | Borough |
| Seven Springs | 56 | 24 | 24 | 0% | 22 | 1 | Borough |
White is the largest city in Fayette County, with a population of 14,650.
Seven Springs is the smallest city in Fayette County, with a population of 24.
There are 56 cities in Fayette County, Pennsylvania.