| Official Name: | Southwest Harbor, Maine |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Maine#USA |
| Pushpin Label: | Southwest 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: | Southwest Harbor |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 3.49 |
| Area Land Km2: | 3.49 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 1.35 |
| Area Land Sq Mi: | 1.35 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 740 |
| Population Density Km2: | 212.16 |
| Population Density Sq Mi: | 549.37 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 46 |
| Coordinates: | 44.2794°N -68.3258°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 04679 |
| Area Code: | 207 |
| Blank Name: | FIPS code |
| Blank Info: | 23-72830 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2630701 |
Southwest Harbor is a census-designated place (CDP) in the town of Southwest Harbor in Hancock County, Maine, United States. The CDP population was 720 at the 2010 census,[2] out of 1,764 people in the town as a whole.
The Southwest Harbor CDP is the main village within the town of Southwest Harbor on Mount Desert Island. It is situated primarily around the tidal cove of Southwest Harbor and extends north to Norwood Cove. Both inlets are located at the southern end of Somes Sound, an arm of the Gulf of Maine.[3]
Maine State Route 102 passes through Southwest Harbor, leading southwest to Tremont and north 6miles to Somesville at the north end of Somes Sound. Route 102A splits east from Route 102 at the southern end of the Southwest Harbor CDP, and makes a loop through Seawall and Bass Harbor, reaching Tremont in 7miles.
According to the United States Census Bureau, the Southwest Harbor CDP has an area of 3.5sqkm, all land.[2]