12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tama | 1 | 2,975 | 3,083 | -0.73% | 1,001 | 3 | City |
| Toledo | 2 | 2,374 | 2,362 | 0.08% | 1,034 | 2 | City |
| Traer | 3 | 1,539 | 1,576 | -0.52% | 1,194 | 1 | City |
| Dysart | 4 | 1,263 | 1,277 | -0.24% | 1,010 | 1 | City |
| Gladbrook | 5 | 769 | 798 | -0.77% | 1,103 | 1 | City |
| Garwin | 6 | 465 | 484 | -0.85% | 462 | 1 | City |
| Clutier | 7 | 208 | 213 | -0.48% | 277 | 1 | City |
| Chelsea | 8 | 205 | 214 | -0.97% | 202 | 1 | City |
| Montour | 9 | 198 | 203 | -0.5% | 433 | 0 | City |
| Elberon | 10 | 177 | 181 | -0.56% | 270 | 1 | City |
| Lincoln | 11 | 118 | 120 | -0.84% | 210 | 1 | City |
| Vining | 12 | 52 | 54 | -1.89% | 94 | 1 | City |
Tama is the largest city in Tama County, with a population of 2,975.
Vining is the smallest city in Tama County, with a population of 52.
There are 12 cities in Tama County, Iowa.