46 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Winner | 1 | 2,977 | 2,901 | 0.51% | 1,299 | 2 | City |
| Lamro | 2 | 472 | 454 | 1.94% | 14 | 34 | Township |
| Colome | 3 | 339 | 329 | 0.59% | 1,202 | 0 | City |
| Black | 4 | 141 | 137 | 2.17% | 4 | 36 | Township |
| Pleasant View | 5 | 122 | 116 | 2.52% | 3 | 36 | Township |
| Ideal | 6 | 118 | 118 | 0% | 3 | 36 | Township |
| Colome | 7 | 105 | 99 | 2.94% | 3 | 35 | Township |
| Wilson | 8 | 103 | 101 | 0.98% | 3 | 36 | Township |
| Stewart | 9 | 83 | 79 | 2.47% | 2 | 36 | Township |
| Brunson | 10 | 60 | 57 | 3.45% | 2 | 29 | Township |
| Valley | 11 | 57 | 54 | 3.64% | 2 | 35 | Township |
| McNeely | 12 | 54 | 52 | 1.89% | 2 | 36 | Township |
| New Witten | 13 | 54 | 53 | 0% | 195 | 0 | Town |
| Willow Creek | 14 | 53 | 51 | 1.92% | 1 | 36 | Township |
| Lake | 15 | 52 | 50 | 1.96% | 1 | 36 | Township |
| Star Prairie | 16 | 51 | 49 | 2% | 1 | 36 | Township |
| King | 17 | 47 | 45 | 2.17% | 1 | 36 | Township |
| Plainview | 18 | 47 | 45 | 2.17% | 1 | 36 | Township |
| Rosedale | 19 | 47 | 45 | 2.17% | 1 | 36 | Township |
| Jordan | 20 | 46 | 44 | 2.22% | 1 | 36 | Township |
| Roseland | 21 | 43 | 41 | 2.38% | 1 | 36 | Township |
| Lincoln | 22 | 42 | 40 | 2.44% | 1 | 36 | Township |
| Condon | 23 | 40 | 38 | 2.56% | 1 | 36 | Township |
| Curlew | 24 | 39 | 37 | 2.63% | 1 | 39 | Township |
| Weaver | 25 | 38 | 36 | 2.7% | 1 | 36 | Township |
| Carter | 26 | 36 | 34 | 2.86% | 1 | 26 | Township |
| Witten | 27 | 36 | 34 | 2.86% | 1 | 28 | Township |
| Rames | 28 | 34 | 32 | 3.03% | 1 | 35 | Township |
| Pleasant Valley | 29 | 32 | 30 | 3.23% | 1 | 29 | Township |
| Sully | 30 | 28 | 28 | 0% | 1 | 36 | Township |
| Dog Ear | 31 | 27 | 27 | 0% | 1 | 36 | Township |
| Bull Creek | 32 | 25 | 25 | 0% | 1 | 29 | Township |
| Elliston | 33 | 25 | 25 | 0% | 1 | 36 | Township |
| Millboro | 34 | 24 | 24 | 0% | 1 | 35 | Township |
| Star Valley | 35 | 24 | 24 | 0% | 1 | 42 | Township |
| Irwin | 36 | 22 | 22 | 0% | 1 | 36 | Township |
| Taylor | 37 | 22 | 22 | 0% | 1 | 26 | Township |
| Wortman | 38 | 22 | 22 | 0% | 1 | 36 | Township |
| Banner | 39 | 21 | 21 | 0% | 1 | 29 | Township |
| Holsclaw | 40 | 20 | 20 | 0% | 1 | 24 | Township |
| Lone Star | 41 | 20 | 20 | 0% | 1 | 36 | Township |
| Huggins | 42 | 19 | 15 | 11.76% | 1 | 35 | Township |
| Keyapaha | 43 | 19 | 19 | 0% | 1 | 35 | Township |
| Beaver Creek | 44 | 18 | 18 | 0% | 1 | 21 | Township |
| Lone Tree | 45 | 11 | 11 | 0% | 0.00 | 36 | Township |
| Greenwood | 46 | 8 | 8 | 0% | 0.00 | 45 | Township |
Winner is the largest city in Tripp County, with a population of 2,977.
Greenwood is the smallest city in Tripp County, with a population of 8.
There are 46 cities in Tripp County, South Dakota.