20 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Waldoboro town | 1 | 5,386 | 5,150 | 0.62% | 75 | 71.50 | Town |
| Wiscasset town | 2 | 3,937 | 3,749 | 0.72% | 160 | 24.63 | Town |
| Boothbay town | 3 | 3,211 | 3,010 | 0.97% | 146 | 21.95 | Town |
| Bristol town | 4 | 3,010 | 2,841 | 0.77% | 89 | 34 | Town |
| Jefferson town | 5 | 2,766 | 2,559 | 1.13% | 53 | 52.57 | Town |
| Whitefield town | 6 | 2,481 | 2,405 | 0.08% | 53 | 46.82 | Town |
| Damariscotta town | 7 | 2,306 | 2,295 | 0.04% | 185 | 12.43 | Town |
| Boothbay Harbor town | 8 | 2,104 | 2,028 | 0.38% | 369 | 5.70 | Town |
| Nobleboro town | 9 | 1,927 | 1,795 | 1.15% | 102 | 18.93 | Town |
| Newcastle town | 10 | 1,908 | 1,849 | 0.16% | 66 | 29.05 | Town |
| Dresden town | 11 | 1,822 | 1,727 | 0.72% | 60 | 30.45 | Town |
| Edgecomb town | 12 | 1,230 | 1,186 | 0.41% | 68 | 18.07 | Town |
| South Bristol town | 13 | 1,147 | 1,126 | 0.09% | 88 | 13.11 | Town |
| Bremen town | 14 | 867 | 820 | 0.81% | 53 | 16.47 | Town |
| Westport Island town | 15 | 763 | 716 | 0.93% | 87 | 8.81 | Town |
| Alna town | 16 | 740 | 712 | 0.14% | 35 | 20.90 | Town |
| Southport town | 17 | 640 | 624 | 0.16% | 119 | 5.38 | Town |
| Somerville town | 18 | 637 | 603 | 0.79% | 29 | 21.94 | Town |
| Monhegan plantation | 19 | 64 | 63 | 0% | 75 | 0.85 | Plantation |
| Hibberts gore | 20 | 3 | 3 | 0% | 4 | 0.74 | Township |
Waldoboro town is the largest city in Lincoln County, with a population of 5,386.
Hibberts gore is the smallest city in Lincoln County.
There are 20 cities in Lincoln County, Maine.