St. Tammany County, LA Property Tax Rate
Homeowners in St. Tammany County pay an effective 0.74% of home value in property tax — about $2,014 a year on the median $272,200 home, above the Louisiana county median of 0.42%.
St. Tammany County, LA: 0.74% effective property tax — ~$2,014/yr on the median home.
- Effective rate0.74%
- Median home value$272,200
- Median annual bill$2,014
- LA county median0.42%
- U.S. county median0.84%
Source: U.S. Census ACS 2023 5-year (median taxes paid ÷ median value), compiled June 2026.
St. Tammany County vs. Louisiana and the U.S.
| Effective rate | On the county's $272,200 median home | |
|---|---|---|
| St. Tammany County | 0.74% | $2,014 |
| Louisiana county median | 0.42% | $1,143 |
| U.S. county median | 0.84% | $2,286 |
Median household income here is $79,277, putting the median tax bill at about 2.5% of income. Effective rates fold in homestead exemptions and assessment practice — they're what owners actually pay, which is why they beat statutory rates for comparison.
Highest & lowest rates in Louisiana
| County | Effective rate | Median bill |
|---|---|---|
| Orleans County | 0.82% | $2,430 |
| St. Tammany County | 0.74% | $2,014 |
| East Baton Rouge County | 0.64% | $1,548 |
| Grant County | 0.64% | $870 |
| East Feliciana County | 0.15% | $321 |
| Allen County | 0.18% | $199 |
| Avoyelles County | 0.20% | $240 |
| West Carroll County | 0.20% | $195 |
Full picture: Louisiana property tax calculator · interactive county atlas · all county pages.
Frequently asked questions
What is the property tax rate in St. Tammany County, LA?
The effective rate is about 0.74% of home value — the median homeowner pays roughly $2,014 a year on a $272,200 median home (ACS 2023 five-year data).
Is St. Tammany County's property tax high?
It's above the Louisiana county median (0.42%) and below the U.S. county median (0.84%).
How is the effective rate calculated?
Median real-estate taxes paid ÷ median home value, from the Census American Community Survey — what owners actually pay, after exemptions, rather than the statutory millage.
Sources & methodology
Sources: Census ACS 2023 5-year tables B25103/B25077.
Effective rate = median real-estate taxes ÷ median home value (owner-occupied). Individual bills vary with exemptions, assessment timing and local levies — verify with the county assessor.