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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in St. Martin Parish, Louisiana

St. Martin Parish has an effective property tax rate of 0.44%. On the median home value of $164,200, that's roughly $725 per year. Median household income is $55,960.

Effective Property Tax Rate1
0.44%
median tax $725 ÷ median home $164,200
Median Home Value1
$164,200
owner-occupied
Median Household Income1
$55,960
per-capita $31,041
Est. Annual Tax on Median Home1
$725
at 0.44% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricSt. Martin ParishLouisiana (state context)
Effective property tax rate10.44%0.44%
Median home value1$164,200—
State income tax3top rate 3.00%top rate 3.00%
State sales tax310.13% combined10.13% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About St. Martin Parish, LA

Property owners in St. Martin Parish, Louisiana, pay an effective rate of 0.442%, which edges past the statewide median of 0.438%. That ranking of 31st out of 64 counties places the parish squarely in the middle of Louisiana's pack, neither a standout bargain nor an outlier. Against the national median of 0.794%, however, the gap widens considerably — St. Martin Parish bills land at roughly half the countrywide figure. A median home valued at $164,200 generates an annual tax of about $725, a sum that sits against a median household income of $55,960 and per-capita income of $31,041. Cade, the parish's principal town, reflects this same profile. The signal here is a jurisdiction that tracks its state closely while undercutting most of the nation on property taxation.

Frequently asked questions

What is the property tax rate in St. Martin Parish, LA?
The effective rate is 0.44% — meaning the median tax bill equals about 0.44% of the median home value.
How much are property taxes on a median home?
On the median home ($164,200), the estimated annual bill is about $725.
Is St. Martin Parish's rate high or low?
Compare it to the state median of 0.44% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the St. Martin Parish assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the St. Martin Parish assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.