13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hartington | 1 | 1,489 | 1,514 | -0.33% | 1,510 | 0.99 | City |
| Laurel | 2 | 932 | 972 | -0.85% | 703 | 1.32 | City |
| Randolph | 3 | 872 | 884 | -0.23% | 811 | 1.07 | City |
| Coleridge | 4 | 501 | 536 | -1.38% | 994 | 0.50 | Village |
| Wynot | 5 | 216 | 218 | 0% | 1,174 | 0.18 | Village |
| Fordyce | 6 | 133 | 133 | 0% | 899 | 0.15 | Village |
| Belden | 7 | 109 | 113 | -0.91% | 741 | 0.15 | Village |
| St. Helena | 8 | 87 | 91 | -1.14% | 196 | 0.44 | Village |
| Bow Valley | 9 | 78 | 96 | -3.7% | 545 | 0.14 | CDP |
| Magnet | 10 | 44 | 46 | 0% | 295 | 0.15 | Village |
| Aten | 11 | 37 | 21 | -11.9% | 22 | 1.70 | CDP |
| Obert | 12 | 22 | 22 | 0% | 301 | 0.07 | Village |
| Sholes | 13 | 17 | 17 | 0% | 123 | 0.14 | Village |
Hartington is the largest city in Cedar County, with a population of 1,489.
Sholes is the smallest city in Cedar County.
There are 13 cities in Cedar County, Nebraska.