3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ulysses | 1 | 5,512 | 5,771 | -0.93% | 1,708 | 3.23 | City |
| Johnson City | 2 | 1,248 | 1,462 | -3.33% | 583 | 2.14 | City |
| Big Bow | 3 | 24 | 108 | 9.09% | 5 | 5.03 | CDP |
Ulysses is the largest city in Grant County, with a population of 5,512.
Big Bow is the smallest city in Grant County.
There are 3 cities in Grant County, Kansas.