What is the sales tax in Mermentau city? - The sales tax in Mermentau city of Louisiana is 9.25% as of 2025. Use the Mermentau sales tax calculator to calculate the sales tax for any purchase in Mermentau.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Mermentau.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Acadia | Louisiana | Mermentau | 70556 | 5% | 4.25% | 0% | 9.25% |