| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| St. Maries | 1 | 2,485 | 2,369 | 1.14% | 2,094 | 1 | City |
| Plummer | 2 | 1,156 | 1,015 | 2.3% | 916 | 1 | City |
| Tensed | 3 | 101 | 87 | 2.02% | 540 | 0 | City |
St. Maries is the largest city in Benewah County, with a population of 2,485.
Tensed is the smallest city in Benewah County, with a population of 101.
There are 3 cities in Benewah County, Idaho.