Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Stockton | 1 | 319,065 | 320,976 | -0.15% | 5,057 | 63.1 | City |
| Tracy | 2 | 99,473 | 93,620 | 1.49% | 3,777 | 26.3 | City |
| Manteca | 3 | 93,409 | 84,009 | 2.58% | 4,361 | 21.4 | City |
| Lodi | 4 | 68,092 | 66,438 | 0.61% | 4,977 | 13.7 | City |
| Lathrop | 5 | 43,444 | 29,096 | 9% | 2,191 | 19.8 | City |
| Ripon | 6 | 16,052 | 16,116 | -0.1% | 3,014 | 5.3 | City |
| Garden Acres | 7 | 10,037 | 10,096 | -0.43% | 3,884 | 2.6 | CDP |
| Country Club | 8 | 9,737 | 9,242 | 0.26% | 5,079 | 1.9 | CDP |
| August | 9 | 9,206 | 8,046 | 0.65% | 7,330 | 1.3 | CDP |
| Escalon | 10 | 7,317 | 7,469 | -0.52% | 3,212 | 2.3 | City |
| Lincoln Village | 11 | 4,529 | 3,991 | 0.22% | 6,162 | 0.7 | CDP |
| Lockeford | 12 | 4,275 | 3,572 | 1.79% | 513 | 8.3 | CDP |
| French Camp | 13 | 3,941 | 3,641 | 1.05% | 1,274 | 3.1 | CDP |
| Woodbridge | 14 | 3,851 | 3,806 | -0.23% | 1,278 | 3.0 | CDP |
| Morada | 15 | 3,253 | 3,419 | -1.24% | 1,091 | 3.0 | CDP |
| Dogtown | 16 | 2,980 | 3,006 | 1.15% | 230 | 13.0 | CDP |
| Kennedy | 17 | 2,393 | 2,877 | -2.49% | 1,974 | 1.2 | CDP |
| East Oakdale | 18 | 2,318 | 2,370 | -1.32% | 430 | 5.4 | CDP |
| Collierville | 19 | 2,132 | 2,354 | 0.66% | 323 | 6.6 | CDP |
| Linden | 20 | 1,855 | 2,043 | 0.27% | 250 | 7.4 | CDP |
| Orange Blossom | 21 | 1,773 | 1,155 | 7.65% | 464 | 3.8 | CDP |
| Taft Mosswood | 22 | 896 | 1,060 | -4.88% | 1,927 | 0.5 | CDP |
| Waterloo | 23 | 885 | 902 | 2.67% | 163 | 5.4 | CDP |
| Thornton | 24 | 830 | 903 | -2.58% | 389 | 2.1 | CDP |
| Victor | 25 | 660 | 420 | 4.1% | 523 | 1.3 | CDP |
| Terminous | 26 | 394 | 400 | 0.25% | 403 | 1.0 | CDP |
| Valley Home | 27 | 249 | 209 | 0.4% | 217 | 1.1 | CDP |
| Acampo | 28 | 241 | 261 | -2.82% | 257 | 0.9 | CDP |
| Farmington | 29 | 95 | 169 | -7.77% | 37 | 2.5 | CDP |
| Knights Ferry | 30 | 84 | 62 | 7.69% | 525 | 0.2 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Stockton is the largest city in San Joaquin County.
Knights Ferry is the smallest city in San Joaquin County.
There are 30 cities in San Joaquin County, California.