20 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Waldoboro | 1 | 5,296 | 5,148 | 0% | 74 | 71 | Town |
| Wiscasset | 2 | 3,959 | 3,751 | 0.1% | 161 | 25 | Town |
| Boothbay | 3 | 3,177 | 3,009 | 0.38% | 145 | 22 | Town |
| Bristol | 4 | 2,980 | 2,838 | 0.27% | 88 | 34 | Town |
| Jefferson | 5 | 2,741 | 2,553 | 0.59% | 52 | 53 | Town |
| Whitefield | 6 | 2,395 | 2,403 | -0.33% | 51 | 47 | Town |
| Damariscotta | 7 | 2,299 | 2,296 | -0.17% | 185 | 12 | Town |
| Boothbay Harbor | 8 | 2,083 | 2,029 | -0.05% | 366 | 6 | Town |
| Nobleboro | 9 | 1,935 | 1,794 | 0.94% | 102 | 19 | Town |
| Newcastle | 10 | 1,894 | 1,851 | -0.16% | 65 | 29 | Town |
| Dresden | 11 | 1,798 | 1,726 | 0.11% | 59 | 30 | Town |
| Edgecomb | 12 | 1,213 | 1,187 | -0.16% | 67 | 18 | Town |
| South Bristol | 13 | 1,132 | 1,127 | -0.35% | 86 | 13 | Town |
| Bremen | 14 | 838 | 820 | -0.59% | 51 | 16 | Town |
| Westport Island | 15 | 752 | 716 | 0.13% | 85 | 9 | Town |
| Alna | 16 | 743 | 716 | 0.13% | 36 | 21 | Town |
| Southport | 17 | 633 | 622 | -0.16% | 118 | 5 | Town |
| Somerville | 18 | 619 | 605 | -0.48% | 28 | 22 | Town |
| Monhegan | 19 | 63 | 62 | 0% | 74 | 1 | Plantation |
| Hibberts gore | 20 | 1 | 1 | 0% | 1 | 1 | Township |
Waldoboro is the largest city in Lincoln County, with a population of 5,296.
Hibberts gore is the smallest city in Lincoln County, with a population of 1.
There are 20 cities in Lincoln County, Maine.