There are 45 cities in Clarion County, Pennsylvania.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clarion | 1 | 4,418 | 3,926 | 2.86% | 2,807 | 1.6 | Borough |
| Clarion township | 2 | 3,549 | 3,641 | -0.78% | 114 | 31.3 | Township |
| Washington township | 3 | 1,826 | 1,863 | -0.71% | 55 | 32.9 | Township |
| Limestone township | 4 | 1,812 | 1,869 | -0.88% | 48 | 37.8 | Township |
| Beaver township | 5 | 1,770 | 1,826 | -0.9% | 53 | 33.4 | Township |
| Farmington township | 6 | 1,723 | 1,776 | -0.92% | 28 | 62.3 | Township |
| Paint township | 7 | 1,601 | 1,643 | -0.8% | 79 | 20.3 | Township |
| Monroe township | 8 | 1,471 | 1,494 | -0.27% | 50 | 29.4 | Township |
| Elk township | 9 | 1,388 | 1,432 | -0.86% | 44 | 31.5 | Township |
| Redbank township | 10 | 1,294 | 1,327 | -0.54% | 43 | 30.1 | Township |
| Porter township | 11 | 1,240 | 1,284 | -1.04% | 28 | 43.9 | Township |
| Madison township | 12 | 1,133 | 1,157 | -0.35% | 42 | 26.7 | Township |
| Ashland township | 13 | 1,089 | 1,115 | -0.46% | 49 | 22.4 | Township |
| Knox | 14 | 1,069 | 1,097 | -0.65% | 1,902 | 0.6 | Borough |
| Knox township | 15 | 961 | 991 | -0.93% | 60 | 16.0 | Township |
| Toby township | 16 | 953 | 981 | -1.04% | 33 | 29.0 | Township |
| New Bethlehem | 17 | 945 | 975 | -0.84% | 2,028 | 0.5 | Borough |
| Rimersburg | 18 | 911 | 941 | -0.87% | 2,503 | 0.4 | Borough |
| Perry township | 19 | 892 | 921 | -0.89% | 31 | 28.8 | Township |
| Salem township | 20 | 876 | 896 | -0.68% | 55 | 16.0 | Township |
| East Brady | 21 | 798 | 818 | -0.62% | 986 | 0.8 | Borough |
| Parker | 22 | 676 | 698 | -0.88% | 707 | 1.0 | City |
| Sligo | 23 | 669 | 685 | -0.59% | 475 | 1.4 | Borough |
| Emlenton | 24 | 598 | 618 | -0.83% | 1,027 | 0.6 | Borough |
| Licking township | 25 | 575 | 572 | 0.88% | 33 | 17.5 | Township |
| Highland township | 26 | 537 | 533 | 0.37% | 27 | 19.9 | Township |
| Strattanville | 27 | 520 | 538 | -0.95% | 1,040 | 0.5 | Borough |
| Summerville | 28 | 497 | 511 | -0.8% | 835 | 0.6 | Borough |
| Richland township | 29 | 473 | 469 | -0.63% | 31 | 15.1 | Township |
| South Bethlehem | 30 | 471 | 486 | -0.84% | 3,099 | 0.2 | Borough |
| Hawthorn | 31 | 465 | 477 | -0.64% | 454 | 1.0 | Borough |
| Shippenville | 32 | 434 | 442 | -0.46% | 1,119 | 0.4 | Borough |
| Tionesta | 33 | 410 | 430 | -1.21% | 298 | 1.4 | Borough |
| Bruin | 34 | 403 | 422 | -1.23% | 221 | 1.8 | Borough |
| Piney township | 35 | 391 | 401 | -0.51% | 22 | 17.8 | Township |
| Millcreek township | 36 | 354 | 361 | -0.56% | 12 | 28.9 | Township |
| St. Petersburg | 37 | 329 | 339 | -0.9% | 1,031 | 0.3 | Borough |
| Corsica | 38 | 311 | 319 | -0.64% | 687 | 0.5 | Borough |
| Eau Claire | 39 | 296 | 308 | -1% | 232 | 1.3 | Borough |
| Foxburg | 40 | 177 | 180 | -0.56% | 481 | 0.4 | Borough |
| Callensburg | 41 | 143 | 147 | -0.69% | 986 | 0.1 | Borough |
| Timblin | 42 | 140 | 144 | -0.71% | 155 | 0.9 | Borough |
| Brady township | 43 | 72 | 75 | -1.37% | 44 | 1.7 | Township |
| Worthville | 44 | 70 | 73 | -1.41% | 391 | 0.2 | Borough |
| Cherry Valley | 45 | 56 | 59 | -1.75% | 20 | 2.8 | Borough |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Clarion is the largest city in Clarion County.
Cherry Valley is the smallest city in Clarion County.
There are 45 cities in Clarion County, Pennsylvania.