| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hartington | 1 | 1,530 | 1,515 | 0% | 1,552 | 1 | City |
| Laurel | 2 | 956 | 975 | -0.52% | 722 | 1 | City |
| Randolph | 3 | 893 | 885 | 0.11% | 831 | 1 | City |
| Coleridge | 4 | 518 | 537 | -0.77% | 1,028 | 1 | Village |
| Wynot | 5 | 221 | 218 | 0% | 1,201 | 0 | Village |
| Fordyce | 6 | 130 | 132 | -0.76% | 878 | 0 | Village |
| Belden | 7 | 110 | 112 | -0.9% | 748 | 0 | Village |
| St. Helena | 8 | 86 | 88 | -1.15% | 194 | 0 | Village |
| Magnet | 9 | 46 | 46 | 0% | 309 | 0 | Village |
| Obert | 10 | 22 | 22 | 0% | 301 | 0 | Village |
| Sholes | 11 | 17 | 17 | 0% | 123 | 0 | Village |
Hartington is the largest city in Cedar County, with a population of 1,530.
Sholes is the smallest city in Cedar County, with a population of 17.
There are 11 cities in Cedar County, Nebraska.