What is the sales tax in zip code 78384? - The sales tax in zip code 78384 in San Diego, Texas is 8.25% as of 2025. Use the 78384 sales tax rate calculator to calculate the sales tax for any purchase in 78384.
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Below is a list of the state sales tax, city sales tax, and county tax rate for .
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
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| Duval | Texas | San Diego | 78384 | 6.25% | 1.75% | 0% | 8.25% |