92780 Sales Tax Rate
The sales tax rate for ZIP code 92780 in Tustin, Orange County, CA is 7.75%: 7.25% state and 0.5% county tax. Rates effective October 2026.
ZIP code 92780 crosses city and county lines, so it can have more than one sales tax rate. The rates below belong to the cities and county areas that overlap this ZIP code (based on U.S. Census Bureau ZIP Code Tabulation Areas). Use the calculator with your city, or the state's official address lookup, for an exact address.
Tax area 1: Tustin, Orange County
- State tax
- 7.25%
- County tax (Orange)
- 0.5%
- City tax (Tustin)
- 0%
- Special district tax
- 0%
- Combined rate
- 7.75%
Tax area 2: Unincorporated Orange County
- State tax
- 7.25%
- County tax (Orange)
- 0.5%
- City tax
- 0%
- Special district tax
- 0%
- Combined rate
- 7.75%