St. Mary Parish Property Tax Rate — Louisiana 2026
In St. Mary Parish, Louisiana, homeowners pay a median annual property tax of $515 on a median home value of $128,000, resulting in an effective property tax rate of 0.40%. This rate is 0.15% lower than the Louisiana state average (0.55%) and 0.51% lower than the national average (0.91%).
How St. Mary Parish Compares
Homeowners in St. Mary Parish enjoy a relatively low property tax burden compared to both the Louisiana state average and the national average.
Property Tax Calculator for St. Mary Parish
Enter your home’s estimated market value to calculate your approximate annual property tax in St. Mary Parish, Louisiana.
This estimate uses the effective tax rate of 0.40% based on ACS data. Actual taxes may differ based on local assessments, exemptions, and levies.
Housing Breakdown
Property Tax Details for St. Mary Parish, Louisiana
The median property tax paid by homeowners in St. Mary Parish is $515 per year. Based on a median home value of $128,000, this translates to an effective property tax rate of 0.40%.
For context, the statewide median property tax in Louisiana is $1,146 with an effective rate of 0.55%, while the national average effective rate stands at 0.91%. St. Mary Parish’s effective rate is 0.15% lower than the Louisiana state average (0.55%).
Of the 18,705 housing units in St. Mary Parish, approximately 69.84% are owner-occupied and 30.16% are renter-occupied. Homeownership rates can influence local tax policy, as communities with higher ownership rates often see more voter engagement on property tax issues.
Important: The data on this page is for informational purposes only and should not be used as tax advice. Actual property taxes depend on your property’s assessed value, local millage rates, and any applicable exemptions. Contact your county assessor’s office for precise tax information.