67 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Center | 1 | 11,819 | 11,641 | 0.46% | 776 | 15 | Township |
| Aliquippa | 2 | 8,948 | 9,221 | -0.61% | 2,134 | 4 | City |
| Brighton | 3 | 8,784 | 8,775 | 0.16% | 453 | 19 | Township |
| Beaver Falls | 4 | 8,701 | 8,981 | -0.64% | 4,075 | 2 | City |
| Chippewa | 5 | 8,121 | 8,032 | 0.59% | 518 | 16 | Township |
| New Sewickley | 6 | 6,977 | 7,150 | -0.37% | 213 | 33 | Township |
| Ambridge | 7 | 6,869 | 6,951 | -0.25% | 4,619 | 1 | Borough |
| New Brighton | 8 | 5,485 | 5,643 | -0.58% | 5,315 | 1 | Borough |
| Monaca | 9 | 5,430 | 5,609 | -0.66% | 2,679 | 2 | Borough |
| North Sewickley | 10 | 5,428 | 5,485 | 0% | 261 | 21 | Township |
| Beaver | 11 | 4,313 | 4,425 | -0.53% | 4,709 | 1 | Borough |
| Baden | 12 | 3,791 | 3,899 | -0.58% | 1,677 | 2 | Borough |
| Clinton | 13 | 3,649 | 3,716 | 0.88% | 133 | 27 | Township |
| Rochester | 14 | 3,360 | 3,467 | -0.65% | 5,714 | 1 | Borough |
| Ohioville | 15 | 3,300 | 3,345 | -0.27% | 141 | 23 | Borough |
| Patterson | 16 | 3,046 | 3,119 | -0.2% | 1,842 | 2 | Township |
| Daugherty | 17 | 2,998 | 3,074 | -0.27% | 303 | 10 | Township |
| Freedom | 18 | 2,948 | 2,997 | -0.1% | 170 | 17 | Township |
| Clinton | 19 | 2,834 | 2,911 | -0.81% | 120 | 24 | Township |
| Raccoon | 20 | 2,715 | 2,780 | -0.44% | 145 | 19 | Township |
| Rochester | 21 | 2,702 | 2,777 | -0.33% | 695 | 4 | Township |
| South Beaver | 22 | 2,641 | 2,672 | 0.19% | 89 | 30 | Township |
| Midland | 23 | 2,350 | 2,427 | -0.68% | 1,299 | 2 | Borough |
| Greene | 24 | 2,294 | 2,186 | 1.64% | 92 | 25 | Township |
| Independence | 25 | 2,203 | 2,245 | -0.27% | 95 | 23 | Township |
| Georgetown | 26 | 2,133 | 2,058 | 1.57% | 2,527 | 1 | CDP |
| Conway | 27 | 2,120 | 2,168 | -0.47% | 1,661 | 1 | Borough |
| Clinton | 28 | 2,065 | 2,038 | 0.1% | 54 | 38 | Township |
| Big Beaver | 29 | 1,822 | 1,869 | -0.55% | 102 | 18 | Borough |
| Beaver | 30 | 1,782 | 1,827 | -0.39% | 53 | 33 | Township |
| Industry | 31 | 1,774 | 1,829 | -0.62% | 175 | 10 | Borough |
| Darlington | 32 | 1,763 | 1,804 | 0% | 80 | 22 | Township |
| Freedom | 33 | 1,448 | 1,491 | -0.62% | 2,397 | 1 | Borough |
| Clinton | 34 | 1,346 | 1,049 | 4.67% | 1,457 | 1 | CDP |
| New Beaver | 35 | 1,335 | 1,369 | -0.52% | 92 | 14 | Borough |
| Clinton | 36 | 1,288 | 1,325 | -0.62% | 104 | 12 | Township |
| Vanport | 37 | 1,257 | 1,287 | -0.4% | 1,374 | 1 | Township |
| West Mayfield | 38 | 1,157 | 1,195 | -0.69% | 1,455 | 1 | Borough |
| Frisco | 39 | 1,090 | 840 | 7.18% | 2,460 | 0 | CDP |
| Ellport | 40 | 1,088 | 1,081 | 0.09% | 2,536 | 0 | Borough |
| Clinton | 41 | 941 | 949 | 0.32% | 33 | 28 | Township |
| Beaver | 42 | 903 | 879 | 0.78% | 26 | 35 | Township |
| Freedom | 43 | 851 | 822 | 0.71% | 61 | 14 | Township |
| Beaver | 44 | 790 | 792 | 0.13% | 22 | 37 | Township |
| Bridgewater | 45 | 731 | 743 | -0.41% | 1,173 | 1 | Borough |
| Koppel | 46 | 690 | 708 | -0.58% | 1,285 | 1 | Borough |
| Patterson Heights | 47 | 616 | 636 | -0.65% | 2,738 | 0 | Borough |
| Paris | 48 | 611 | 763 | -1.29% | 289 | 2 | CDP |
| East Rochester | 49 | 544 | 563 | -0.73% | 1,486 | 0 | Borough |
| Potter | 50 | 523 | 521 | 0.19% | 83 | 6 | Township |
| Georgetown | 51 | 510 | 956 | -6.25% | 125 | 4 | CDP |
| Beaver | 52 | 507 | 514 | -0.39% | 28 | 18 | Township |
| Beaver | 53 | 454 | 467 | -0.66% | 21 | 21 | Township |
| South Heights | 54 | 371 | 385 | -0.8% | 1,135 | 0 | Borough |
| New Galilee | 55 | 319 | 328 | -0.62% | 1,152 | 0 | Borough |
| Chewton | 56 | 290 | 373 | -4.61% | 194 | 1 | CDP |
| Fallston | 57 | 247 | 255 | -0.8% | 521 | 0 | Borough |
| Darlington | 58 | 245 | 249 | -0.41% | 2,988 | 0 | Borough |
| Cross Creek | 59 | 211 | 185 | 2.43% | 581 | 0 | CDP |
| Georgetown | 60 | 202 | 207 | -0.49% | 1,154 | 0 | Borough |
| Eastvale | 61 | 173 | 180 | -1.14% | 1,922 | 0 | Borough |
| Hazen | 62 | 161 | 217 | 7.33% | 1,220 | 0 | CDP |
| Shippingport | 63 | 150 | 158 | -1.32% | 44 | 3 | Borough |
| Hookstown | 64 | 126 | 130 | -0.79% | 933 | 0 | Borough |
| Frankfort Springs | 65 | 111 | 115 | -0.89% | 427 | 0 | Borough |
| Homewood | 66 | 88 | 91 | -1.12% | 521 | 0 | Borough |
| S.N.P.J. | 67 | 15 | 15 | 0% | 20 | 1 | Borough |
Center is the largest city in Beaver County, with a population of 11,819.
S.N.P.J. is the smallest city in Beaver County, with a population of 15.
There are 67 cities in Beaver County, Pennsylvania.