Portola Valley, CA is in zip code 94028. The current total local sales tax rate in Portola Valley, CA is 9.375%. The 2020 total local sales tax rate was 9.250%.
| District | Rate |
|---|---|
| California State | 7.250% |
| San Mateo County | 2.125% |
| Portola Valley | 0.000% |
| Total | 9.375% |