What is the sales tax in Duncans Mills city? - The sales tax in Duncans Mills city of California is 9% as of 2025. Use the Duncans Mills sales tax calculator to calculate the sales tax for any purchase in Duncans Mills.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Duncans Mills.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Sonoma | California | Duncans Mills | 95430 | 6% | 0% | 0.25% | 9% |