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 |
|---|---|---|---|---|---|---|---|
| San Jose | 1 | 956,433 | 1,009,319 | -1.36% | 5,375 | 177.9 | City |
| Sunnyvale | 2 | 150,872 | 155,250 | -0.72% | 6,839 | 22.1 | City |
| Santa Clara | 3 | 131,886 | 128,588 | 0.63% | 7,216 | 18.3 | City |
| Mountain View | 4 | 81,458 | 82,766 | -0.4% | 6,812 | 12.0 | City |
| Milpitas | 5 | 76,497 | 79,792 | -1.07% | 5,674 | 13.5 | City |
| Palo Alto | 6 | 65,057 | 68,357 | -1.25% | 2,705 | 24.1 | City |
| Gilroy | 7 | 57,867 | 59,398 | -0.66% | 3,499 | 16.5 | City |
| Cupertino | 8 | 56,343 | 60,111 | -1.64% | 4,969 | 11.3 | City |
| Morgan Hill | 9 | 44,075 | 45,685 | -0.91% | 3,407 | 12.9 | City |
| Campbell | 10 | 41,005 | 43,784 | -1.67% | 6,743 | 6.1 | City |
| Los Gatos | 11 | 31,816 | 33,415 | -1.24% | 2,754 | 11.6 | Town |
| Los Altos | 12 | 29,536 | 31,350 | -1.51% | 4,516 | 6.5 | City |
| Saratoga | 13 | 29,171 | 30,913 | -1.47% | 2,283 | 12.8 | City |
| Stanford | 14 | 17,829 | 16,200 | 1.64% | 6,483 | 2.8 | CDP |
| Alum Rock | 15 | 11,214 | 11,798 | -2.67% | 12,904 | 0.9 | CDP |
| East Foothills | 16 | 8,270 | 6,815 | 0% | 3,888 | 2.1 | CDP |
| Los Altos Hills | 17 | 8,089 | 8,489 | -1.22% | 892 | 9.1 | Town |
| San Martin | 18 | 6,166 | 6,498 | -1% | 532 | 11.6 | CDP |
| Loyola | 19 | 3,911 | 3,404 | 1.22% | 2,814 | 1.4 | CDP |
| Cambrian Park | 20 | 3,596 | 3,015 | 0.64% | 6,221 | 0.6 | CDP |
| Monte Sereno | 21 | 3,455 | 3,471 | -0.12% | 2,114 | 1.6 | City |
| Lexington Hills | 22 | 2,615 | 2,656 | 0.54% | 554 | 4.7 | CDP |
| Mountain View | 23 | 2,132 | 1,872 | -0.79% | 7,429 | 0.3 | CDP |
| Fruitdale | 24 | 1,266 | 1,184 | 1.85% | 4,742 | 0.3 | 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.
San Jose is the largest city in Santa Clara County.
Fruitdale is the smallest city in Santa Clara County.
There are 24 cities in Santa Clara County, California.