San Diego County sales tax rate, California
Quick answer
Combined sales tax in San Diego County runs 7.75% across the cities we cover, on top of California's 7.25% state rate. The county share is a separate line from any city or special-district increment, which is why two addresses in the same county can pay different totals.
Cities in San Diego County
County share shown separately from the city and district layers.
| City | State | County | City + districts | Combined |
|---|---|---|---|---|
| San Diego | 7.25% | 0% | 0.5% | 7.75% |
Source: California Department of Tax and Fee Administration · rates as published for 2026