What is the sales tax in Gretna city? - The sales tax in Gretna city of Louisiana is 9.75% as of 2025. Use the Gretna sales tax calculator to calculate the sales tax for any purchase in Gretna.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Gretna.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Jefferson | Louisiana | Gretna | 70056 | 5% | 0% | 4.75% | 9.75% |