35 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Scranton | 1 | 75,559 | 76,174 | -0.16% | 2,986 | 25.31 | City |
| Dunmore | 2 | 14,298 | 14,018 | 0.39% | 1,603 | 8.92 | Borough |
| South Abington township | 3 | 9,683 | 9,543 | 0.46% | 1,063 | 9.11 | Township |
| Carbondale | 4 | 8,781 | 8,818 | -0.08% | 2,708 | 3.24 | City |
| Old Forge | 5 | 8,696 | 8,486 | 0.48% | 2,537 | 3.43 | Borough |
| Archbald | 6 | 7,560 | 7,302 | 0.69% | 442 | 17.09 | Borough |
| Blakely | 7 | 6,654 | 6,651 | 0.01% | 1,745 | 3.81 | Borough |
| Taylor | 8 | 6,225 | 6,277 | -0.16% | 1,197 | 5.20 | Borough |
| Moosic | 9 | 6,005 | 5,947 | 0.2% | 927 | 6.48 | Borough |
| Dickson City | 10 | 5,987 | 6,024 | -0.12% | 1,249 | 4.79 | Borough |
| Olyphant | 11 | 5,384 | 5,373 | 0.04% | 990 | 5.44 | Borough |
| Clarks Summit | 12 | 5,057 | 5,064 | -0.02% | 3,191 | 1.58 | Borough |
| Scott township | 13 | 4,682 | 4,622 | 0.43% | 172 | 27.20 | Township |
| Jessup | 14 | 4,472 | 4,511 | -0.18% | 664 | 6.74 | Borough |
| Throop | 15 | 4,128 | 4,062 | 0.32% | 831 | 4.97 | Borough |
| Newton township | 16 | 2,973 | 2,828 | 0.78% | 134 | 22.23 | Township |
| Spring Brook township | 17 | 2,816 | 2,744 | 0.71% | 82 | 34.55 | Township |
| Avoca | 18 | 2,538 | 2,503 | 0.28% | 2,488 | 1.02 | Borough |
| Roaring Brook township | 19 | 2,387 | 2,283 | 0.97% | 111 | 21.41 | Township |
| Fell township | 20 | 2,349 | 2,332 | 0.21% | 154 | 15.27 | Township |
| Greenfield township | 21 | 2,283 | 2,263 | 0.22% | 109 | 20.93 | Township |
| Taylor township | 22 | 2,221 | 2,296 | -0.58% | 95 | 23.34 | Township |
| Jermyn | 23 | 2,126 | 2,135 | -0.09% | 2,684 | 0.79 | Borough |
| Moscow | 24 | 2,013 | 2,023 | -0.1% | 707 | 2.85 | Borough |
| Waverly township | 25 | 1,846 | 1,853 | -0.05% | 406 | 4.55 | Township |
| Mayfield | 26 | 1,761 | 1,766 | -0.06% | 720 | 2.45 | Borough |
| Clifton township | 27 | 1,534 | 1,486 | 1.12% | 79 | 19.44 | Township |
| Clarks Green | 28 | 1,507 | 1,522 | -0.2% | 2,822 | 0.53 | Borough |
| Ransom township | 29 | 1,467 | 1,394 | 1.17% | 83 | 17.76 | Township |
| Glenburn township | 30 | 1,431 | 1,434 | -0.07% | 308 | 4.64 | Township |
| Dalton | 31 | 1,299 | 1,274 | 0.39% | 430 | 3.02 | Borough |
| Carbondale township | 32 | 1,158 | 1,123 | 0.7% | 84 | 13.79 | Township |
| Taylor township | 33 | 1,039 | 1,059 | -0.57% | 32 | 32.64 | Township |
| Thornhurst township | 34 | 1,019 | 1,007 | 0.39% | 45 | 22.84 | Township |
| Vandling | 35 | 717 | 727 | -0.28% | 546 | 1.31 | Borough |
Scranton is the largest city in Lackawanna County, with a population of 75,559.
Vandling is the smallest city in Lackawanna County.
There are 35 cities in Lackawanna County, Pennsylvania.