8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 04530 | Bath | 11,564 |
| 04086 | Topsham | 9,644 |
| 04357 | Richmond | 3,555 |
| 04287 | Bowdoin | 3,180 |
| 04579 | Woolwich | 3,135 |
| 04008 | Bowdoinham | 3,115 |
| 04562 | Phippsburg | 1,987 |
| 04548 | Georgetown | 913 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Sagadahoc County, Maine (US Census).