St. Martin County, Louisiana Property Taxes

$774 avg. annual savings

No Upfront Costs

You only pay if we save

Property Taxes in St. Martin County, Louisiana

Median St. Martin County effective property tax rate: 0.62%, significantly lower than the national median of 1.02%.
Median St. Martin County home value: $78,400
Median annual St. Martin County tax bill: $496, $1,904 lower than the national median property tax bill of $2,400.

How are property taxes in St. Martin County calculated?

Property taxes in St. Martin County are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in St. Martin County or another part of St. Martin County, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

St. Martin County, Louisiana Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.62%

Estimate Property Tax Bill

$486

$451

How Does the St. Martin County Property Tax Calculator Work?

Use this St. Martin County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies St. Martin County's median effective tax rate of 0.62% to generate your estimate.

Enter your property's estimated assessed value — the figure the assessor assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.

Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. St. Martin County's median effective tax rate is lower than the Louisiana median tax rate of 0.92% and the national median property tax rate of 1.02%. The county's median tax bill of $496 is also lower than the Louisiana median tax bill of $2,400 by $1,904.

For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across St. Martin County.

Property Tax Rates Across St. Martin County, Louisiana

What Are Effective Property Tax Rates Across St. Martin County?

Local government entities set tax rates, which vary widely across St. Martin County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.

Below, compare St. Martin County's effective property tax rate to other counties in Louisiana or the U.S. median of 1.02%.

St. Martin County's median effective rate stands at 0.62%, which is lower than the national median of 1.02%. Within St. Martin County, the highest rate is found in PIERRE PART at 1.24%, while ARNAUDVILLE has the lowest at 0.59%.

These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.

Property Tax Rates Across St. Martin County, Louisiana

Source: Ownwell

0.59%

0.91%

1.24%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective St. Martin County Tax Rate

0.62%

Median Effective Louisiana Tax Rate

0.92%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across St. Martin County, Louisiana

City	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
Arnaudville	0.12%	0.32%	0.59%	0.90%	0.93%
Broussard	0.32%	0.55%	0.76%	0.99%	1.01%
Morgan City	0.45%	0.75%	1.24%	1.24%	1.24%
New Iberia	0.18%	0.43%	0.73%	1.01%	1.01%
Pierre Part	0.77%	1.24%	1.24%	1.24%	1.24%
Breaux Bridge	N/A	N/A	N/A	N/A	N/A
Cade	N/A	N/A	N/A	N/A	N/A
Cecilia	N/A	N/A	N/A	N/A	N/A
Parks	N/A	N/A	N/A	N/A	N/A
Saint Martinville	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across St. Martin County, Louisiana

When examining property taxes in St. Martin County, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The St. Martin Parish Assessor estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In St. Martin County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of August.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For example, the median tax bill in St. Martin County is $496, well below the national median property tax bill of $2400. Tax bills range significantly across the county, with Pierre Part at $1382 and Arnaudville at $506. Broussard has the highest median home price at $145200.

Property Tax Assessment Values Across St. Martin County, Louisiana

Source: Ownwell

$77,400

$111,300

$145,200

Median St. Martin County Market Value

$78,400

Median Louisiana Market Value

$118,642

Median United States Market Value

$235,294

Property Tax Assessment Values Across St. Martin County, Louisiana

City	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
Arnaudville	$20,500	$43,600	$77,400	$138,500	$226,660
Broussard	$32,790	$67,000	$145,200	$295,728	$433,390
Morgan City	$19,370	$44,550	$109,650	$180,925	$328,110
New Iberia	$37,330	$68,450	$96,700	$220,850	$343,840
Pierre Part	$21,400	$48,300	$105,300	$180,700	$269,100
Breaux Bridge	N/A	N/A	N/A	N/A	N/A
Cade	N/A	N/A	N/A	N/A	N/A
Cecilia	N/A	N/A	N/A	N/A	N/A
Parks	N/A	N/A	N/A	N/A	N/A
Saint Martinville	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across St. Martin County, Louisiana

Property tax bills in St. Martin are based on the assessed value of a home, not its market price alone. Local taxing authorities apply the county’s tax rate to that assessed value to determine the final bill, so two homes with similar market values can still be taxed differently if their assessments or exemptions differ.

Several factors can affect what a homeowner pays, including the home’s assessed value, local tax rates, and any exemptions that reduce taxable value. With a median home price of $78,400, property taxes can vary widely across the county. The 25th percentile tax bill is $176, while the 75th percentile is $1,101 and the 90th percentile reaches $2,012.

For many homeowners, this means property taxes can be a manageable expense or a significant annual cost depending on how the home is assessed. In some areas, the median tax bill is lower, such as $506 in Arnaudville, while others are higher, like $1,382 in Pierre Part.

Property Tax Bills Across St. Martin County, Louisiana

Source: Ownwell

$506

$944

$1,382

Median St. Martin County Tax Bill

$496

Median Louisiana Tax Bill

$995

Median United States Tax Bill

$2,400

Property Tax Bills Across St. Martin County, Louisiana

City	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
Arnaudville	$90	$229	$506	$1,044	$1,831
Broussard	$254	$565	$1,286	$2,644	$3,962
Morgan City	$175	$458	$1,055	$1,950	$3,661
New Iberia	$155	$338	$846	$1,726	$3,441
Pierre Part	$288	$690	$1,382	$2,333	$3,523
Breaux Bridge	N/A	N/A	N/A	N/A	N/A
Cade	N/A	N/A	N/A	N/A	N/A
Cecilia	N/A	N/A	N/A	N/A	N/A
Parks	N/A	N/A	N/A	N/A	N/A
Saint Martinville	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	September 15

Links
St. Martin Tax Assessor
Website	smpapro2.w32.wh-2.com

Frequently Asked Property Tax Questions in St. Martin County, Louisiana

How are property taxes calculated in St. Martin County, Louisiana?

Property taxes in St. Martin County, Louisiana are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in St. Martin County, Louisiana?

To appeal your property taxes in St. Martin County, Louisiana, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in St. Martin County, Louisiana?

Common property tax exemptions in St. Martin County, Louisiana include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in St. Martin County, Louisiana?

Property tax deadlines in St. Martin County, Louisiana vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in St. Martin County, Louisiana?

Ownwell provides professional property tax appeal services in St. Martin County, Louisiana. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.