What is the sales tax in zip code 78830? - The sales tax in zip code 78830 in Big Wells, Texas is 7.75% as of 2025. Use the 78830 sales tax rate calculator to calculate the sales tax for any purchase in 78830.
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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 |
|---|---|---|---|---|---|---|---|
| Dimmit | Texas | Big Wells | 78830 | 6.25% | 1% | 0.5% | 7.75% |