23 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Merced | 1 | 98,336 | 87,019 | 2.36% | 4,229 | 23 | City |
| Los Banos | 2 | 49,425 | 45,719 | 1.52% | 4,944 | 10 | City |
| Atwater | 3 | 32,325 | 31,939 | 0.24% | 4,922 | 7 | City |
| Livingston | 4 | 14,903 | 14,221 | 0.92% | 4,055 | 4 | City |
| Winton | 5 | 12,329 | 11,619 | 0.93% | 4,054 | 3 | CDP |
| Delhi | 6 | 10,931 | 11,837 | 0.1% | 3,114 | 4 | CDP |
| Franklin | 7 | 7,939 | 7,709 | 1.52% | 3,920 | 2 | CDP |
| Hilmar-Irwin | 8 | 6,806 | 5,937 | 1.61% | 1,733 | 4 | CDP |
| Gustine | 9 | 6,138 | 6,136 | 0% | 3,265 | 2 | City |
| Dos Palos | 10 | 5,751 | 5,789 | -0.14% | 4,263 | 1 | City |
| McSwain | 11 | 5,260 | 4,429 | 1.41% | 873 | 6 | CDP |
| Planada | 12 | 3,221 | 3,984 | -2.75% | 1,850 | 2 | CDP |
| Santa Nella | 13 | 2,224 | 1,981 | 2.58% | 475 | 5 | CDP |
| Le Grand | 14 | 1,684 | 1,597 | 0.12% | 1,477 | 1 | CDP |
| South Dos Palos | 15 | 1,440 | 1,167 | -0.83% | 936 | 2 | CDP |
| Ballico | 16 | 567 | 508 | 1.98% | 188 | 3 | CDP |
| El Nido | 17 | 491 | 283 | 2.29% | 149 | 3 | CDP |
| Cressey | 18 | 352 | 243 | -0.56% | 200 | 2 | CDP |
| Volta | 19 | 303 | 133 | 1% | 69 | 4 | CDP |
| Bear Creek | 20 | 241 | 95 | -1.23% | 4,228 | 0 | CDP |
| Snelling | 21 | 165 | 115 | -2.37% | 306 | 1 | CDP |
| Stevinson | 22 | 87 | 196 | -14.71% | 77 | 1 | CDP |
| Tuttle | 23 | 56 | 97 | -5.08% | 32 | 2 | CDP |
Merced is the largest city in Merced County, with a population of 98,336.
Tuttle is the smallest city in Merced County, with a population of 56.
There are 23 cities in Merced County, California.