12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Grant City | 1 | 770 | 819 | -1.28% | 579 | 1 | Town |
| Grant City | 2 | 770 | 817 | -1.28% | 579 | 1 | Town |
| Sheridan | 3 | 449 | 443 | 0% | 13 | 34 | Township |
| Sheridan | 4 | 449 | 443 | 0% | 13 | 34 | Township |
| Sheridan | 5 | 137 | 148 | -1.44% | 706 | 0 | Town |
| Sheridan | 6 | 137 | 147 | -1.44% | 706 | 0 | Town |
| Worth | 7 | 59 | 63 | -1.67% | 234 | 0 | Village |
| Worth | 8 | 59 | 63 | -1.67% | 234 | 0 | Village |
| Allendale | 9 | 45 | 48 | -2.17% | 79 | 1 | Village |
| Allendale | 10 | 45 | 48 | -2.17% | 79 | 1 | Village |
| Denver | 11 | 30 | 33 | -3.23% | 78 | 0 | Village |
| Denver | 12 | 30 | 33 | -3.23% | 78 | 0 | Village |
Grant City is the largest city in Worth County, with a population of 770.
Denver is the smallest city in Worth County, with a population of 30.
There are 12 cities in Worth County, Missouri.