58 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 95035 | Milpitas | 79,393 |
| 95123 | San Jose | 70,952 |
| 95020 | Gilroy | 68,365 |
| 95127 | San Jose | 62,269 |
| 95014 | Cupertino | 61,414 |
| 95051 | Santa Clara | 60,499 |
| 95111 | San Jose | 59,761 |
| 94087 | Sunnyvale | 58,913 |
| 95112 | San Jose | 58,775 |
| 95125 | San Jose | 53,333 |
| 95122 | San Jose | 52,555 |
| 95037 | Morgan Hill | 51,867 |
| 95124 | San Jose | 51,803 |
| 95116 | San Jose | 50,436 |
| 94086 | Sunnyvale | 49,217 |
| 95008 | Campbell | 48,746 |
| 94303 | Palo Alto | 47,989 |
| 95136 | San Jose | 47,294 |
| 95148 | San Jose | 45,688 |
| 95132 | San Jose | 40,981 |
| 95050 | Santa Clara | 39,905 |
| 95129 | San Jose | 39,797 |
| 95120 | San Jose | 38,003 |
| 95126 | San Jose | 36,996 |
| 95121 | San Jose | 36,657 |
| 94040 | Mountain View | 35,667 |
| 95128 | San Jose | 33,653 |
| 95118 | San Jose | 32,827 |
| 94043 | Mountain View | 32,670 |
| 95070 | Saratoga | 31,688 |
| 95131 | San Jose | 31,335 |
| 95134 | San Jose | 30,916 |
| 95133 | San Jose | 28,749 |
| 95117 | San Jose | 28,663 |
| 94306 | Palo Alto | 27,785 |
| 95032 | Los Gatos | 27,678 |
| 95054 | Santa Clara | 24,444 |
| 94024 | Los Altos | 24,041 |
| 94089 | Sunnyvale | 23,447 |
| 94085 | Sunnyvale | 22,996 |
| 95135 | San Jose | 21,402 |
| 95110 | San Jose | 20,314 |
| 94022 | Los Altos | 20,052 |
| 95138 | San Jose | 19,420 |
| 94305 | Stanford | 17,279 |
| 94301 | Palo Alto | 17,259 |
| 94041 | Mountain View | 15,222 |
| 95130 | San Jose | 13,376 |
| 95030 | Los Gatos | 13,373 |
| 95119 | San Jose | 10,461 |
| 95139 | San Jose | 7,232 |
| 95046 | San Martin | 5,801 |
| 94304 | Palo Alto | 4,489 |
| 95053 | Santa Clara | 3,317 |
| 95113 | San Jose | 2,161 |
| 95002 | Alviso | 1,920 |
| 95140 | Mount Hamilton | 91 |
| 95013 | Coyote | 53 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 58 ZCTAs in Santa Clara County, California (US Census).