8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Phillipsburg | 1 | 2,179 | 2,340 | -1.22% | 1,280 | 2 | City |
| Logan | 2 | 420 | 453 | -1.18% | 280 | 2 | City |
| Agra | 3 | 190 | 204 | -1.04% | 763 | 0 | City |
| Long Island | 4 | 127 | 138 | -1.55% | 309 | 0 | City |
| Kirwin | 5 | 126 | 135 | -0.79% | 138 | 1 | City |
| Prairie View | 6 | 96 | 105 | -1.03% | 653 | 0 | City |
| Glade | 7 | 51 | 54 | 0% | 190 | 0 | City |
| Speed | 8 | 35 | 38 | 0% | 235 | 0 | City |
Phillipsburg is the largest city in Phillips County, with a population of 2,179.
Speed is the smallest city in Phillips County, with a population of 35.
There are 8 cities in Phillips County, Kansas.