1 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Martin | 1 | 915 | 939 | -0.44% | 1,634 | 1 | City |
Martin is the largest city in Bennett County, with a population of 915.
Martin is the smallest city in Bennett County, with a population of 915.
There is 1 city in Bennett County, South Dakota.