51 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cranberry township | 1 | 35,680 | 33,192 | 1.66% | 1,559 | 22.89 | Township |
| Oil City | 2 | 9,230 | 9,590 | -0.77% | 2,054 | 4.49 | City |
| Polk township | 3 | 7,356 | 7,465 | -0.19% | 239 | 30.80 | Township |
| Franklin township | 4 | 6,887 | 7,054 | 1.09% | 170 | 40.58 | Township |
| Cranberry township | 5 | 6,170 | 6,327 | -0.58% | 88 | 69.80 | Township |
| Franklin | 6 | 5,849 | 6,064 | -0.73% | 1,251 | 4.68 | City |
| Franklin township | 7 | 5,232 | 5,033 | 1.18% | 273 | 19.19 | Township |
| Franklin township | 8 | 4,815 | 4,669 | 0.73% | 71 | 68.19 | Township |
| Sugarcreek | 9 | 4,661 | 4,768 | -0.45% | 124 | 37.51 | Borough |
| Franklin township | 10 | 4,414 | 4,428 | -0.32% | 338 | 13.06 | Township |
| Franklin township | 11 | 4,396 | 4,358 | -0.09% | 290 | 15.16 | Township |
| Franklin township | 12 | 3,853 | 3,876 | 0.39% | 218 | 17.68 | Township |
| Franklin township | 13 | 2,623 | 2,595 | 0.81% | 123 | 21.28 | Township |
| Franklin township | 14 | 2,246 | 2,376 | -1.1% | 76 | 29.69 | Township |
| Cornplanter township | 15 | 2,243 | 2,314 | -0.62% | 60 | 37.45 | Township |
| Franklin township | 16 | 2,233 | 2,204 | 0.5% | 80 | 27.88 | Township |
| Sandycreek township | 17 | 1,998 | 2,054 | -0.55% | 112 | 17.77 | Township |
| Franklin township | 18 | 1,750 | 1,721 | 0.34% | 141 | 12.40 | Township |
| Franklin township | 19 | 1,470 | 1,507 | -0.47% | 51 | 28.66 | Township |
| Hasson Heights | 20 | 1,396 | 1,495 | 0.22% | 915 | 1.53 | CDP |
| Frenchcreek township | 21 | 1,368 | 1,424 | -0.87% | 47 | 29.14 | Township |
| Woodland Heights | 22 | 1,342 | 1,146 | 0.37% | 818 | 1.64 | CDP |
| Pinegrove township | 23 | 1,327 | 1,326 | 0.61% | 36 | 37.02 | Township |
| Oakland township | 24 | 1,315 | 1,356 | -0.6% | 46 | 28.80 | Township |
| Cherrytree township | 25 | 1,248 | 1,303 | -0.87% | 34 | 36.67 | Township |
| Rockland township | 26 | 1,197 | 1,241 | -0.75% | 24 | 49.59 | Township |
| Canal township | 27 | 892 | 930 | -0.78% | 37 | 24.32 | Township |
| Plum township | 28 | 878 | 909 | -0.68% | 33 | 26.61 | Township |
| Seneca | 29 | 872 | 982 | -1.47% | 331 | 2.63 | CDP |
| Franklin township | 30 | 871 | 901 | -0.68% | 36 | 23.91 | Township |
| Franklin township | 31 | 838 | 828 | 0.48% | 35 | 23.69 | Township |
| Pleasantville | 32 | 812 | 846 | -0.85% | 855 | 0.95 | Borough |
| Scrubgrass township | 33 | 723 | 752 | -0.82% | 28 | 25.86 | Township |
| Oil Creek township | 34 | 721 | 752 | -0.83% | 31 | 23.02 | Township |
| Polk | 35 | 616 | 633 | -0.48% | 304 | 2.03 | Borough |
| Franklin township | 36 | 607 | 619 | -0.49% | 18 | 33.40 | Township |
| Emlenton | 37 | 593 | 618 | -0.84% | 1,019 | 0.58 | Borough |
| Franklin township | 38 | 548 | 551 | -0.18% | 42 | 13.07 | Township |
| Franklin township | 39 | 479 | 492 | -0.42% | 15 | 31.50 | Township |
| Mineral township | 40 | 477 | 496 | -0.83% | 21 | 22.27 | Township |
| Rouseville | 41 | 437 | 457 | -0.91% | 489 | 0.89 | Borough |
| President township | 42 | 432 | 450 | -0.92% | 11 | 37.79 | Township |
| Clintonville | 43 | 425 | 440 | -0.7% | 390 | 1.09 | Borough |
| Cooperstown | 44 | 383 | 397 | -0.78% | 691 | 0.55 | Borough |
| Victory township | 45 | 373 | 375 | 0.27% | 19 | 20.13 | Township |
| Polk township | 46 | 277 | 287 | -0.72% | 9 | 32.10 | Township |
| Allegheny township | 47 | 272 | 282 | -0.73% | 11 | 24.97 | Township |
| Franklin | 48 | 265 | 274 | -0.75% | 444 | 0.60 | Borough |
| Pleasantville | 49 | 195 | 195 | 0% | 2,635 | 0.07 | Borough |
| Utica | 50 | 180 | 187 | -0.55% | 129 | 1.40 | Borough |
| Kennerdell | 51 | 153 | 175 | -4.38% | 68 | 2.25 | CDP |
Cranberry township is the largest city in Venango County, with a population of 35,680.
Kennerdell is the smallest city in Venango County.
There are 51 cities in Venango County, Pennsylvania.