St. Mary Parish Property Taxes
St. Mary Parish, Louisiana
Effective Tax Rate
0.00%
29.6% below state avgMedian Annual Tax
$0
$43/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.40%
At a Glance
Median Home Value
$128,000
State avg ▼ $161,894
Tax w/ Mortgage/yr
$614
$51/mo escrow
Tax w/o Mortgage/yr
$395
$33/mo
State Tax Rate Rank
#30
of 64 counties (1 = lowest)
Data Story
About Property Taxes in St. Mary Parish, Louisiana
St. Mary rates among America's lowest
St. Mary Parish's effective tax rate of 0.402% produces median annual taxes of $515, less than one-fifth the national median property tax of $2,690. This places the parish in the lowest quintile nationally for property tax burden.
Just below Louisiana's average
St. Mary's 0.402% effective rate ranks slightly below Louisiana's state average of 0.421%, placing the parish very near the statewide median. With median taxes of $515, St. Mary residents pay about $217 less annually than Louisiana's median of $732.
Lower taxes than most surrounding parishes
St. Mary (0.402%) undercuts Tangipahoa (0.433%) and Terrebonne (0.451%) but exceeds St. Landry (0.297%) and Tensas (0.289%). Among the eight-parish region, St. Mary ranks near the middle, offering moderate tax rates compared to its neighbors.
Your annual tax on a median home
St. Mary's median home value of $128,000 results in annual property taxes of approximately $515, or $614 with mortgage escrow included. This translates to roughly $43 monthly—well below the national average and among Louisiana's most affordable.
Review your assessment for errors
Even in lower-tax parishes like St. Mary, overassessments are common and correctable through appeals. If your property tax bill seems high relative to recent neighborhood sales or comparable homes, request a formal assessment review at no cost to challenge inflated valuations.
How St. Mary Parish Compares
Median Annual Property Tax
St. Mary Parish
0.40%
Effective rate
Louisiana Avg
0.45%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in St. Mary Parish, Louisiana?
How much are property taxes in St. Mary Parish?
How does St. Mary Parish compare to the Louisiana average?
What is the median home value in St. Mary Parish, Louisiana?
Is St. Mary Parish a low property tax area in Louisiana?
How does St. Mary Parish rank for property taxes in Louisiana?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Louisiana
East Feliciana Parish
0.15%
Allen Parish
0.18%
Avoyelles Parish
0.20%
West Carroll Parish
0.20%
Madison Parish
0.23%
Evangeline Parish
0.27%
Pointe Coupee Parish
0.28%
Jefferson Davis Parish
0.28%
East Carroll Parish
0.29%
Tensas Parish
0.29%
Catahoula Parish
0.29%
St. Landry Parish
0.30%
Acadia Parish
0.30%
De Soto Parish
0.31%
Winn Parish
0.31%
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.