9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| West Branch | 1 | 3,059 | 2,509 | 3.1% | 1,190 | 3 | City |
| Tipton | 2 | 3,007 | 3,162 | -0.86% | 1,486 | 2 | City |
| Durant | 3 | 1,759 | 1,875 | -1.07% | 1,425 | 1 | City |
| Clarence | 4 | 967 | 1,039 | -1.23% | 1,271 | 1 | City |
| Mechanicsville | 5 | 951 | 1,019 | -1.14% | 1,154 | 1 | City |
| Lowden | 6 | 750 | 801 | -1.06% | 699 | 1 | City |
| Stanwood | 7 | 598 | 640 | -1.16% | 751 | 1 | City |
| Bennett | 8 | 321 | 347 | -1.23% | 1,551 | 0 | City |
| Toronto | 9 | 100 | 102 | 0% | 549 | 0 | City |
West Branch is the largest city in Cedar County, with a population of 3,059.
Toronto is the smallest city in Cedar County, with a population of 100.
There are 9 cities in Cedar County, Iowa.