| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ulysses | 1 | 5,469 | 5,774 | -1% | 1,694 | 3 | City |
| Johnson City | 2 | 1,390 | 1,465 | -0.86% | 649 | 2 | City |
Ulysses is the largest city in Grant County, with a population of 5,469.
Johnson City is the smallest city in Grant County, with a population of 1,390.
There are 2 cities in Grant County, Kansas.