47 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cranberry | 1 | 35,475 | 33,185 | 1.35% | 1,550 | 23 | Township |
| Oil City | 2 | 9,313 | 9,588 | -0.59% | 2,073 | 4 | City |
| Polk | 3 | 7,383 | 7,464 | -0.04% | 240 | 31 | Township |
| Franklin | 4 | 6,475 | 7,060 | -2.25% | 160 | 41 | Township |
| Cranberry | 5 | 6,270 | 6,332 | 0.16% | 90 | 70 | Township |
| Franklin | 6 | 5,900 | 6,064 | -0.56% | 1,261 | 5 | City |
| Franklin | 7 | 5,247 | 5,031 | 1.18% | 273 | 19 | Township |
| Franklin | 8 | 4,817 | 4,671 | 0.69% | 71 | 68 | Township |
| Sugarcreek | 9 | 4,699 | 4,764 | -0.28% | 125 | 38 | Borough |
| Franklin | 10 | 4,509 | 4,428 | 0.51% | 345 | 13 | Township |
| Franklin | 11 | 4,447 | 4,360 | 0.54% | 293 | 15 | Township |
| Franklin | 12 | 3,846 | 3,882 | 0.21% | 217 | 18 | Township |
| Franklin | 13 | 2,604 | 2,597 | 0.35% | 122 | 21 | Township |
| Franklin | 14 | 2,283 | 2,374 | -0.57% | 77 | 30 | Township |
| Cornplanter | 15 | 2,268 | 2,316 | -0.13% | 61 | 37 | Township |
| Franklin | 16 | 2,219 | 2,204 | 0.09% | 80 | 28 | Township |
| Sandycreek | 17 | 2,028 | 2,057 | 0.15% | 114 | 18 | Township |
| Franklin | 18 | 1,786 | 1,716 | 1.19% | 144 | 12 | Township |
| Franklin | 19 | 1,486 | 1,505 | 0.07% | 52 | 29 | Township |
| Frenchcreek | 20 | 1,387 | 1,423 | -0.14% | 48 | 29 | Township |
| Pinegrove | 21 | 1,343 | 1,325 | 1.13% | 36 | 37 | Township |
| Oakland | 22 | 1,336 | 1,356 | 0.15% | 46 | 29 | Township |
| Cherrytree | 23 | 1,268 | 1,303 | -0.16% | 35 | 37 | Township |
| Rockland | 24 | 1,213 | 1,242 | -0.08% | 24 | 50 | Township |
| Canal | 25 | 904 | 932 | -0.22% | 37 | 24 | Township |
| Plum | 26 | 886 | 909 | -0.23% | 33 | 27 | Township |
| Franklin | 27 | 883 | 899 | -0.11% | 37 | 24 | Township |
| Franklin | 28 | 836 | 830 | 0.24% | 35 | 24 | Township |
| Pleasantville | 29 | 821 | 846 | -0.61% | 864 | 1 | Borough |
| Scrubgrass | 30 | 733 | 749 | 0% | 28 | 26 | Township |
| Oil Creek | 31 | 729 | 751 | -0.27% | 32 | 23 | Township |
| Polk | 32 | 623 | 633 | -0.32% | 307 | 2 | Borough |
| Franklin | 33 | 611 | 619 | -0.16% | 18 | 33 | Township |
| Emlenton | 34 | 596 | 615 | -0.67% | 1,024 | 1 | Borough |
| Franklin | 35 | 554 | 551 | 0.18% | 42 | 13 | Township |
| Mineral | 36 | 483 | 495 | 0% | 22 | 22 | Township |
| Franklin | 37 | 481 | 496 | -0.62% | 15 | 31 | Township |
| Rouseville | 38 | 443 | 458 | -0.67% | 496 | 1 | Borough |
| President | 39 | 440 | 450 | 0% | 12 | 38 | Township |
| Clintonville | 40 | 426 | 438 | -0.7% | 390 | 1 | Borough |
| Cooperstown | 41 | 387 | 397 | -0.51% | 699 | 1 | Borough |
| Victory | 42 | 377 | 374 | 1.07% | 19 | 20 | Township |
| Allegheny | 43 | 280 | 282 | 0.72% | 11 | 25 | Township |
| Polk | 44 | 274 | 284 | -0.72% | 9 | 32 | Township |
| Franklin | 45 | 265 | 274 | -0.75% | 444 | 1 | Borough |
| Pleasantville | 46 | 197 | 196 | 0% | 2,662 | 0 | Borough |
| Utica | 47 | 178 | 183 | -0.56% | 127 | 1 | Borough |
Cranberry is the largest city in Venango County, with a population of 35,475.
Utica is the smallest city in Venango County, with a population of 178.
There are 47 cities in Venango County, Pennsylvania.