There are 34 cities in Lawrence 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 | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| New Castle | 1 | Pennsylvania | 21,250 | 21,902 | -0.76% | 2,558 | 8.31 |
| Hermitage | 2 | Pennsylvania | 15,816 | 16,243 | -0.67% | 537 | 29.46 |
| Grove City | 3 | Pennsylvania | 7,747 | 7,875 | -0.41% | 2,874 | 2.70 |
| Ellwood City | 4 | Pennsylvania | 7,397 | 7,624 | -0.77% | 3,183 | 2.32 |
| Slippery Rock | 5 | Pennsylvania | 3,716 | 3,168 | 3.83% | 2,259 | 1.65 |
| Slippery Rock University | 6 | Pennsylvania | 2,861 | 2,503 | 3.25% | 5,192 | 0.55 |
| Oakwood | 7 | Pennsylvania | 2,290 | 2,166 | 0.93% | 886 | 2.59 |
| New Wilmington | 8 | Pennsylvania | 2,097 | 2,097 | 0% | 1,990 | 1.05 |
| Big Beaver | 9 | Pennsylvania | 1,826 | 1,868 | -0.6% | 103 | 17.79 |
| New Castle Northwest | 10 | Pennsylvania | 1,630 | 1,235 | 6.19% | 1,874 | 0.87 |
| New Beaver | 11 | Pennsylvania | 1,334 | 1,369 | -0.67% | 92 | 14.45 |
| Oakland | 12 | Pennsylvania | 1,256 | 1,456 | -3.83% | 942 | 1.33 |
| Ellport | 13 | Pennsylvania | 1,094 | 1,081 | 0.27% | 2,550 | 0.43 |
| Bessemer | 14 | Pennsylvania | 1,039 | 1,073 | -0.86% | 628 | 1.65 |
| Harmony | 15 | Pennsylvania | 918 | 950 | -0.86% | 2,330 | 0.39 |
| West Pittsburg | 16 | Pennsylvania | 867 | 821 | 1.4% | 864 | 1 |
| Frisco | 17 | Pennsylvania | 854 | 840 | -1.04% | 1,928 | 0.44 |
| West Middlesex | 18 | Pennsylvania | 787 | 815 | -0.88% | 931 | 0.84 |
| New Bedford | 19 | Pennsylvania | 697 | 1,053 | -11.32% | 273 | 2.55 |
| South New Castle | 20 | Pennsylvania | 629 | 648 | -0.79% | 1,941 | 0.32 |
| Wheatland | 21 | Pennsylvania | 564 | 582 | -0.88% | 646 | 0.87 |
| Wampum | 22 | Pennsylvania | 542 | 556 | -0.73% | 550 | 0.98 |
| Lake Arthur Estates | 23 | Pennsylvania | 492 | 466 | 1.44% | 742 | 0.66 |
| Chewton | 24 | Pennsylvania | 326 | 373 | -0.61% | 218 | 1.49 |
| West Liberty | 25 | Pennsylvania | 319 | 333 | -1.24% | 83 | 3.84 |
| New Galilee | 26 | Pennsylvania | 315 | 326 | -0.94% | 1,137 | 0.28 |
| Enon Valley | 27 | Pennsylvania | 291 | 301 | -1.02% | 595 | 0.49 |
| Frizzleburg | 28 | Pennsylvania | 260 | 340 | -7.14% | 92 | 2.82 |
| Portersville | 29 | Pennsylvania | 221 | 231 | -1.34% | 278 | 0.80 |
| Barkeyville | 30 | Pennsylvania | 183 | 190 | -1.08% | 55 | 3.32 |
| Volant | 31 | Pennsylvania | 120 | 127 | -1.64% | 1,071 | 0.11 |
| Homewood | 32 | Pennsylvania | 88 | 91 | -1.12% | 521 | 0.17 |
| Hazen | 33 | Pennsylvania | 79 | 217 | -24.04% | 598 | 0.13 |
| S.N.P.J. | 34 | Pennsylvania | 17 | 17 | 0% | 23 | 0.75 |
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.
New Castle is the largest city in Lawrence County.
S.N.P.J. is the smallest city in Lawrence County.
There are 34 cities in Lawrence County, Pennsylvania.