2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Junction City | 1 | 21,605 | 22,949 | -1.03% | 1,871 | 12 | City |
| Milford | 2 | 387 | 407 | -0.77% | 677 | 1 | City |
Junction City is the largest city in Geary County, with a population of 21,605.
Milford is the smallest city in Geary County, with a population of 387.
There are 2 cities in Geary County, Kansas.