| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Phillipsburg | 1 | 2,199 | 2,338 | -1.17% | 1,292 | 2 | City |
| Logan | 2 | 426 | 454 | -1.16% | 284 | 2 | City |
| Agra | 3 | 190 | 203 | -1.55% | 763 | 0 | City |
| Long Island | 4 | 130 | 139 | -1.52% | 316 | 0 | City |
| Kirwin | 5 | 127 | 135 | -1.55% | 139 | 1 | City |
| Prairie View | 6 | 97 | 105 | -2.02% | 660 | 0 | City |
| Glade | 7 | 50 | 53 | -1.96% | 187 | 0 | City |
| Speed | 8 | 35 | 38 | -2.78% | 235 | 0 | City |
Phillipsburg is the largest city in Phillips County, with a population of 2,199.
Speed is the smallest city in Phillips County, with a population of 35.
There are 8 cities in Phillips County, Kansas.