| Official Name: | Winter Harbor, Maine |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Maine#USA |
| Pushpin Label: | Winter Harbor |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Maine |
| Subdivision Type2: | County |
| Subdivision Name2: | Hancock |
| Subdivision Type3: | Town |
| Subdivision Name3: | Winter Harbor |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.62 |
| Area Land Km2: | 5.62 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 2.17 |
| Area Land Sq Mi: | 2.17 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 385 |
| Population Density Km2: | 68.54 |
| Population Density Sq Mi: | 177.50 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 55 |
| Coordinates: | 44.3953°N -68.0803°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 04693 |
| Area Code: | 207 |
| Blank Name: | FIPS code |
| Blank Info: | 23-86620 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2630702 |
Winter Harbor is a census-designated place (CDP) in the town of Winter Harbor in Hancock County, Maine, United States. The CDP population was 426 at the 2010 census,[2] out of 516 people in the town as a whole.
The Winter Harbor CDP is the main village within the town of Winter Harbor on Mount Desert Island. It is situated at the northern end of the harbor of the same name, an arm on the east side of Frenchman Bay. Maine State Route 186 is the primary road through the community. The CDP extends east along Route 186 to Moore Road, the western entrance to the loop road around the Schoodic Peninsula. To the north, the CDP includes the small community of Gerrishville. The CDP is bordered to the west by Frenchman Bay and extends south to include all of Grindstone Neck between Frenchman Bay and the Winter Harbor inlet.[3] Route 186 leads north 6miles to U.S. Route 1 at West Gouldsboro and east 4miles to Prospect Harbor.
According to the United States Census Bureau, the Winter Harbor CDP has an area of 5.6sqkm, all land.[2]