St. Mary Parish, Louisiana sales tax rate: 9.45%
The county-wide general sales tax rate in St. Mary Parish, Louisiana is 9.45%, of which 5.0% is the Louisiana state rate. Some cities and districts add more, up to 10.45% in Baldwin.
Breakdown of the highest rate, 10.45%
| Level | Jurisdiction | Rate |
|---|---|---|
| State | Louisiana | 5.0% |
| County | St. Mary Parish | 0.0% |
| City | Largest city in county | 5.45% |
| Special | Transit / district | 0.0% |
Neighboring counties
- Assumption Parish, LA 10.0%
- Iberia Parish, LA 9.5%
- St. Martin Parish, LA 8.5%
- Terrebonne Parish, LA 10.5%
Other counties in Louisiana
- Acadia Parish 9.25%
- Allen Parish 9.7%
- Ascension Parish 9.5%
- Assumption Parish 10.0%
- Avoyelles Parish 9.25%
- Beauregard Parish 10.0%
- Bienville Parish 10.0%
- Bossier Parish 10.0%
- Caddo Parish 9.35%
- Calcasieu Parish 10.75%
- Caldwell Parish 10.0%
- Cameron Parish 5.0%
- Catahoula Parish 11.0%
- Claiborne Parish 9.625%
- Concordia Parish 11.0%
- De Soto Parish 9.625%
- East Baton Rouge Parish 10.5%
- East Carroll Parish 10.0%
- East Feliciana Parish 10.0%
- Evangeline Parish 11.0%
- Franklin Parish 10.0%
- Grant Parish 10.0%
- Iberia Parish 9.5%
- Iberville Parish 10.25%
- Jackson Parish 10.0%
- Jefferson Parish 9.75%
- Jefferson Davis Parish 10.0%
- LaSalle Parish 8.0%
- Lafayette Parish 10.0%
- Lafourche Parish 9.65%
- Lincoln Parish 10.0%
- Livingston Parish 10.0%
- Madison Parish 9.5%
- Morehouse Parish 10.99%
- Natchitoches Parish 9.625%
- Orleans Parish 10.0%
- Ouachita Parish 10.99%
- Plaquemines Parish 9.75%
- Pointe Coupee Parish 9.25%
- Rapides Parish 9.5%
- Red River Parish 10.5%
- Richland Parish 9.25%
- Sabine Parish 9.625%
- St. Bernard Parish 10.0%
- St. Charles Parish 10.0%
- St. Helena Parish 10.0%
- St. James Parish 8.5%
- St. John the Baptist Parish 10.25%
- St. Landry Parish 8.55%
- St. Martin Parish 8.5%
- St. Tammany Parish 9.25%
- Tangipahoa Parish 10.5%
- Tensas Parish 11.5%
- Terrebonne Parish 10.5%
- Union Parish 10.99%
- Vermilion Parish 9.25%
- Vernon Parish 9.0%
- Washington Parish 10.83%
- Webster Parish 8.5%
- West Baton Rouge Parish 10.25%
- West Carroll Parish 11.0%
- West Feliciana Parish 10.0%
- Winn Parish 9.5%
Rates as of Jan 2026. Source: EvvyTools US Sales Tax Rates by ZIP Code (2026). General rate on tangible goods; not tax advice. Verify with your state Department of Revenue before filing or pricing.