19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lewiston | 1 | 39,266 | 37,110 | 1.11% | 1,150 | 34.15 | City |
| Lewiston city | 2 | 38,188 | 37,110 | -0.28% | 1,118 | 34.15 | City |
| Auburn city | 3 | 25,641 | 24,074 | 1.68% | 432 | 59.34 | City |
| Auburn | 4 | 25,272 | 24,074 | 0.96% | 426 | 59.34 | City |
| Lisbon town | 5 | 9,711 | 9,722 | -0.09% | 425 | 22.84 | Town |
| Turner town | 6 | 6,041 | 5,823 | 1.07% | 102 | 59.26 | Town |
| Poland town | 7 | 5,972 | 5,907 | 0.13% | 141 | 42.23 | Town |
| Sabattus town | 8 | 5,194 | 5,053 | 0.58% | 202 | 25.71 | Town |
| Greene town | 9 | 4,442 | 4,377 | 0.25% | 138 | 32.28 | Town |
| Durham town | 10 | 4,339 | 4,181 | 0.65% | 113 | 38.28 | Town |
| Lisbon Falls | 11 | 4,196 | 4,079 | 0.14% | 1,141 | 3.68 | CDP |
| Livermore Falls town | 12 | 3,183 | 3,059 | 1.21% | 162 | 19.68 | Town |
| Mechanic Falls town | 13 | 3,170 | 3,107 | 0.57% | 288 | 11 | Town |
| Minot town | 14 | 2,815 | 2,769 | 0.32% | 95 | 29.57 | Town |
| Leeds town | 15 | 2,340 | 2,262 | 0.73% | 58 | 40.05 | Town |
| Mechanic Falls | 16 | 2,298 | 2,118 | 0.17% | 430 | 5.34 | CDP |
| Livermore town | 17 | 2,155 | 2,133 | -0.19% | 57 | 37.62 | Town |
| Wales town | 18 | 1,654 | 1,598 | 0.85% | 104 | 15.95 | Town |
| Turner | 19 | 676 | 594 | 7.13% | 464 | 1.46 | CDP |
Lewiston is the largest city in Androscoggin County, with a population of 39,266.
Turner is the smallest city in Androscoggin County.
There are 19 cities in Androscoggin County, Maine.