| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Grant City | 1 | 789 | 814 | -0.63% | 594 | 1 | Town |
| Sheridan | 2 | 141 | 146 | -0.7% | 727 | 0 | Town |
| Worth | 3 | 61 | 64 | -1.61% | 242 | 0 | Village |
| Allendale | 4 | 47 | 49 | -2.08% | 83 | 1 | Village |
| Denver | 5 | 31 | 33 | -3.13% | 81 | 0 | Village |
Grant City is the largest city in Worth County, with a population of 789.
Denver is the smallest city in Worth County, with a population of 31.
There are 5 cities in Worth County, Missouri.