What is the sales tax in zip code 70083? - The sales tax in zip code 70083 in Port Sulphur, Louisiana is 9.5% as of 2025. Use the 70083 sales tax rate calculator to calculate the sales tax for any purchase in 70083.
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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 |
|---|---|---|---|---|---|---|---|
| Plaquemines | Louisiana | Port Sulphur | 70083 | 5% | 0% | 4.5% | 9.5% |