12 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tama | 1 | 2,954 | 3,083 | -0.71% | 994 | 3 | City |
| Toledo | 2 | 2,377 | 2,362 | 0.13% | 1,036 | 2 | City |
| Traer | 3 | 1,532 | 1,576 | -0.45% | 1,189 | 1 | City |
| Dysart | 4 | 1,260 | 1,277 | -0.24% | 1,007 | 1 | City |
| Gladbrook | 5 | 763 | 798 | -0.78% | 1,095 | 1 | City |
| Garwin | 6 | 461 | 484 | -0.86% | 458 | 1 | City |
| Clutier | 7 | 207 | 213 | -0.48% | 276 | 1 | City |
| Chelsea | 8 | 203 | 214 | -0.98% | 200 | 1 | City |
| Montour | 9 | 197 | 203 | -0.51% | 431 | 0 | City |
| Elberon | 10 | 176 | 181 | -0.56% | 269 | 1 | City |
| Lincoln | 11 | 118 | 120 | 0% | 210 | 1 | City |
| Vining | 12 | 52 | 54 | 0% | 94 | 1 | City |
Tama is the largest city in Tama County, with a population of 2,954.
Vining is the smallest city in Tama County, with a population of 52.
There are 12 cities in Tama County, Iowa.