18 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ione | 1 | 9,532 | 8,926 | 1.29% | 2,081 | 5 | City |
| Jackson | 2 | 5,100 | 4,994 | 0.41% | 1,423 | 4 | City |
| Pine Grove | 3 | 3,678 | 2,070 | 2.74% | 491 | 7 | CDP |
| Buckhorn | 4 | 3,388 | 2,175 | 1.93% | 687 | 5 | CDP |
| Sutter Creek | 5 | 2,722 | 2,656 | 0.48% | 1,009 | 3 | City |
| Camanche Village | 6 | 2,220 | 1,344 | 4.32% | 408 | 5 | CDP |
| Pioneer | 7 | 1,379 | 1,224 | 1.4% | 350 | 4 | CDP |
| Amador Pines | 8 | 1,323 | 992 | 7.21% | 273 | 5 | CDP |
| Red Corral | 9 | 1,236 | 1,557 | -0.88% | 196 | 6 | CDP |
| Plymouth | 10 | 1,151 | 1,079 | 1.23% | 434 | 3 | City |
| Camanche North Shore | 11 | 1,138 | 1,188 | 0.98% | 488 | 2 | CDP |
| Buena Vista | 12 | 784 | 573 | 3.16% | 464 | 2 | CDP |
| River Pines | 13 | 514 | 420 | 1.78% | 2,545 | 0 | CDP |
| Amador City | 14 | 206 | 198 | 0.49% | 665 | 0 | City |
| Martell | 15 | 203 | 113 | -2.4% | 93 | 2 | CDP |
| Volcano | 16 | 45 | 45 | -10% | 32 | 1 | CDP |
| Drytown | 17 | 33 | 13 | -21.43% | 10 | 3 | CDP |
| Fiddletown | 18 | 11 | 211 | -57.69% | 2 | 5 | CDP |
Ione is the largest city in Amador County, with a population of 9,532.
Fiddletown is the smallest city in Amador County, with a population of 11.
There are 18 cities in Amador County, California.