18 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ione | 1 | 5,624 | 5,141 | 1.75% | 1,228 | 4.58 | City |
| Jackson | 2 | 5,220 | 4,999 | 0.85% | 1,457 | 3.58 | City |
| Pine Grove | 3 | 3,678 | 2,070 | 2.74% | 491 | 7.48 | CDP |
| Buckhorn | 4 | 3,388 | 2,175 | 1.93% | 687 | 4.93 | CDP |
| Sutter Creek | 5 | 2,759 | 2,656 | 0.77% | 1,023 | 2.70 | City |
| Camanche Village | 6 | 2,220 | 1,344 | 4.32% | 408 | 5.44 | CDP |
| Pioneer | 7 | 1,379 | 1,224 | 1.4% | 350 | 3.94 | CDP |
| Amador Pines | 8 | 1,323 | 992 | 7.21% | 273 | 4.85 | CDP |
| Red Corral | 9 | 1,236 | 1,557 | -0.88% | 196 | 6.30 | CDP |
| Plymouth | 10 | 1,165 | 1,079 | 1.48% | 439 | 2.65 | City |
| Camanche North Shore | 11 | 1,138 | 1,188 | 0.98% | 488 | 2.33 | CDP |
| Buena Vista | 12 | 784 | 573 | 3.16% | 464 | 1.69 | CDP |
| River Pines | 13 | 514 | 420 | 1.78% | 2,545 | 0.20 | CDP |
| Amador City | 14 | 206 | 200 | 0.49% | 665 | 0.31 | City |
| Martell | 15 | 203 | 113 | -2.4% | 93 | 2.19 | CDP |
| Volcano | 16 | 45 | 45 | -10% | 32 | 1.40 | CDP |
| Drytown | 17 | 33 | 13 | -21.43% | 10 | 3.26 | CDP |
| Fiddletown | 18 | 11 | 211 | -57.69% | 2 | 4.55 | CDP |
Ione is the largest city in Amador County, with a population of 5,624.
Fiddletown is the smallest city in Amador County.
There are 18 cities in Amador County, California.