29 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Modesto | 1 | 219,064 | 218,691 | 0.03% | 5,052 | 43 | City |
| Turlock | 2 | 71,668 | 72,747 | -0.3% | 4,267 | 17 | City |
| Ceres | 3 | 47,809 | 49,279 | -0.61% | 5,033 | 9 | City |
| Patterson | 4 | 25,889 | 23,823 | 1.62% | 3,325 | 8 | City |
| Riverbank | 5 | 25,084 | 24,876 | 0.17% | 5,326 | 5 | City |
| Oakdale | 6 | 22,931 | 23,216 | -0.25% | 3,684 | 6 | City |
| Salida | 7 | 15,131 | 15,269 | 0.63% | 6,825 | 2 | CDP |
| Newman | 8 | 12,084 | 12,391 | -0.5% | 5,636 | 2 | City |
| Waterford | 9 | 9,448 | 9,135 | 0.67% | 4,007 | 2 | City |
| Hughson | 10 | 7,809 | 7,493 | 0.81% | 4,097 | 2 | City |
| Keyes | 11 | 5,883 | 5,691 | 0.31% | 3,752 | 2 | CDP |
| West Modesto | 12 | 5,377 | 5,557 | -0.37% | 3,894 | 1 | CDP |
| Bret Harte | 13 | 4,870 | 5,020 | -0.37% | 8,855 | 1 | CDP |
| Denair | 14 | 4,260 | 5,702 | -0.23% | 2,594 | 2 | CDP |
| Bystrom | 15 | 3,924 | 3,763 | -0.15% | 7,213 | 1 | CDP |
| Empire | 16 | 3,610 | 3,285 | -1.07% | 3,091 | 1 | CDP |
| Grayson | 17 | 1,753 | 1,582 | 3.12% | 9,527 | 0 | CDP |
| Parklawn | 18 | 1,595 | 1,844 | 1.14% | 11,992 | 0 | CDP |
| Diablo Grande | 19 | 1,365 | 892 | 2.71% | 318 | 4 | CDP |
| Airport | 20 | 1,243 | 1,276 | -3.72% | 7,144 | 0 | CDP |
| Del Rio | 21 | 1,115 | 1,241 | -0.89% | 558 | 2 | CDP |
| Hickman | 22 | 852 | 751 | 1.67% | 2,427 | 0 | CDP |
| Rouse | 23 | 752 | 1,684 | -10.05% | 3,160 | 0 | CDP |
| Riverdale Park | 24 | 712 | 1,393 | -3.78% | 490 | 1 | CDP |
| Westley | 25 | 602 | 689 | 0% | 1,771 | 0 | CDP |
| Cowan | 26 | 249 | 472 | -1.97% | 1,766 | 0 | CDP |
| La Grange | 27 | 179 | 143 | 7.19% | 1,925 | 0 | CDP |
| Crows Landing | 28 | 176 | 346 | -6.38% | 106 | 2 | CDP |
| Monterey Park Tract | 29 | 139 | 293 | 0% | 2,957 | 0 | CDP |
Modesto is the largest city in Stanislaus County, with a population of 219,064.
Monterey Park Tract is the smallest city in Stanislaus County, with a population of 139.
There are 29 cities in Stanislaus County, California.