| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Friendship | Standard | $396,670 |
| Cushing | Standard | $444,530 |
| Waldoboro | Standard | $397,050 |
| Washington | Standard | $144,620 |
| Rockland | Standard | $437,870 |
| Camden | Standard | $489,540 |
| Hope | Standard | $370,920 |
| North Haven | Standard | $299,450 |
| Owls Head | Standard | $357,810 |
| Rockport | Standard | $422,680 |
| South Thomaston | Standard | $370,180 |
| Spruce Head | Standard | $414,200 |
| Tenants Harbor | Standard | $495,570 |
| Thomaston | Standard | $363,260 |
| Union | Standard | $626,850 |
| Vinalhaven | Standard | $325,760 |
| Warren | Standard | $459,950 |
Source: US Internal Revenue Service