| Official Zip Code Name | Winthrop |
| Zip Code State | Maine |
| Primary County: | Kennebec |
| Area Code | 207 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 295 ft. |
| Area | 31.141 Sqm. |
| Coordinates(Y,X) | 44.311894, -69.962531 |