Plummer is a city in Benewah County, Idaho, United States.

[4] It is the largest city within the Coeur d'Alene Reservation, and is accessed by U.S. Route 95, the state's primary north–south highway.

[5] According to the United States Census Bureau, the city has a total area of 1.25 square miles (3.24 km2), all of it land.

The Trail of the Coeur d'Alenes is a 73-mile (117 km) rail trail that runs between Plummer and Mullan and passes through Heyburn State Park to the east, Harrison, and Cataldo along the way.

25.4% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.

19.6% of all households were made up of individuals, and 8.0% had someone living alone who was 65 years of age or older.