Benewah County () is a county located in the northwest part of the U.S. state of Idaho. As of the 2020 United States census the county had a population of 9,530. The county seat and largest city is St. Maries, which has some area inside the Coeur d'Alene Reservation. The county was established on January 23, 1915, of land partitioned from Kootenai County. It was named for a chief of the Coeur d'Alene Tribe. The federally recognized Coeur d'Alene Tribe is based on the Coeur d'Alene Reservation in this and neighboring Kootenai County.
Geography
Benewah County lies on the west line of the state. Its west boundary line abuts the east boundary line of the state of Washington. The county has a total area of , of which is land and (0.9%) is water. It is the northern part of the Palouse, a wide and rolling prairie-like region of the middle Columbia basin.
Adjacent counties
- Spokane County, Washington – northwest
- Kootenai County – north
- Shoshone County – east
- Latah County – south
- Whitman County, Washington – southwest
Major highways
- 25px – US 95
- 25px – SH-3
- 25px – SH-5
- 25px – SH-6
- 25px – SH-58
- 25px – SH-60
National protected area
- St. Joe National Forest (part)
State protected areas
- Heyburn State Park
- McCroskey State Park