| Official Name: | Long Lake, Wisconsin |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Wisconsin |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Wisconsin |
| Subdivision Type2: | County |
| Subdivision Name2: | Florence |
| Area Total Sq Mi: | 0.264 |
| Area Land Sq Mi: | 0.264 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Total: | 59 |
| Population Density Sq Mi: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1558 |
| Coordinates: | 45.8428°N -88.6678°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 54542 |
| Area Code: | 715 & 534 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1579744 |
Long Lake is an unincorporated census-designated place in the town of Long Lake, Florence County, Wisconsin, United States. Long Lake is located on the eastern shore of Long Lake along Wisconsin Highway 139, 21miles west-southwest of Florence.[1] As of the 2020 census, its population was 59.[2] The community became a census-designated place in 2010. The community has the 54542 ZIP code.[3]
Whites make up the largest racial/ethnic group in Long Lake (100.0%).[4]