FAIRFAX Sales Tax Overview
As of 2026, FAIRFAX, California has a combined sales tax rate of 9%. This rate includes the California state tax of 6% plus applicable county and local taxes.
This rate applies to most taxable goods and services purchased within the 94978 zip code area. Some items such as groceries, prescription drugs, and clothing may be exempt depending on California state law.
FAIRFAX Tax Examples
* Based on rate of 9%. Verify with your exact zip code.
FAIRFAX Zip Codes & Tax Rates
| Zip Code | Combined |
|---|---|
| 94978 | 9% |
Frequently Asked Questions
What is the sales tax rate in FAIRFAX, CA?
The sales tax rate in FAIRFAX, CA is 9% as of 2026. This includes the 6% California state tax plus any county and city taxes.
How many zip codes are in FAIRFAX, CA?
FAIRFAX, CA has 1 zip code in our database: 94978.
How much is sales tax on a $100 purchase in FAIRFAX?
On a $100 purchase in FAIRFAX, CA you would pay approximately $9.00 in sales tax at the average rate of 9%, for a total of $109.00.
Is FAIRFAX's sales tax rate higher than the California average?
Use our calculator to compare FAIRFAX's rate of 9% against other cities in California. Visit the California state page for the statewide average.