| Official Name: | Fernwood, Idaho |
| Settlement Type: | Town |
| Mapsize: | 250px |
| Coordinates: | 47.1122°N -116.3928°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Idaho |
| Subdivision Type2: | County |
| Subdivision Name2: | Benewah |
| Unit Pref: | Imperial |
| Area Footnotes: | = |
| Elevation Ft: | 2733 |
| Population Footnotes: | [1] |
| Population Total: | 702 |
| Population As Of: | 2020 |
| Timezone: | Pacific Time Zone |
| Utc Offset: | -8 |
| Utc Offset Dst: | -7 |
| Postal Code Type: | ZIP code |
| Postal Code: | 83830 |
| Area Code: | 208 |
Fernwood is a small unincorporated community in the southeastern corner of Benewah County, Idaho, United States, located just to the east of State Highway 3. The city shares a public K-6 school with the communities of Clarkia, Santa and Emida. All students attend high school and middle school in St. Maries.
The 2000 census recorded a population of 684[2] with an average household income of $27,578. The median age in the tabulation area is 41.2 and the average household size is 2.51.
The Coeur d’Alene people initially inhabited this area for thousands of years prior to the coming of white settlers. The native name of the area is Epschssups'n or “It has a little tail.”[3]
Fernwood's population was estimated at 250 in 1960.[4]