Slidell, St. Tammany County, Louisiana Property Taxes
Median Slidell, LA effective property tax rate: 0.98%, slightly lower than the national median of 1.02%, but higher than the Louisiana state median of 0.91%.
Median Slidell, LA home value: $140,400
Median annual Slidell, LA tax bill: $1,465, $935 lower than the national median property tax bill of $2,400.
How are property taxes in St. Tammany calculated?
Property taxes in Slidell, LA 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 Slidell’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Slidell, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Slidell, St. Tammany County, Louisiana Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.98%
Estimate Property Tax Bill
$1,376
$1,277
Property Tax Rates Across Slidell, St. Tammany County, Louisiana
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 Slidell Tax Rate
0.98%
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. Tammany County Tax Rate
0.98%
Median Effective Louisiana Tax Rate
0.91%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Slidell, St. Tammany County, Louisiana
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
70458 | 0.38% | 0.76% | 1.03% | 1.47% | 1.73% |
70460 | 0.12% | 0.41% | 0.79% | 1.45% | 1.57% |
70461 | 0.44% | 0.78% | 1.01% | 1.45% | 1.64% |
Source: Ownwell
Property Tax Assessment Values Across Slidell, St. Tammany County, Louisiana
When examining property taxes in Slidell, Louisiana, 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. Tammany 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. This assessed value is the figure used to calculate your property taxes, or the amount multiplied by your tax rate to get your tax bill.
In St. Tammany Parish, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Slidell. For example, the median home price in Slidell is $140,400, with tax bills ranging significantly across the county. Zip code 70461 has the highest median home price at $174,300.
Property Tax Assessment Values Across Slidell, St. Tammany County, Louisiana
Source: Ownwell

$67,000
$160,680
$254,360
Median Slidell Market Value
$140,400
Median St. Tammany County Market Value
$172,720
Median Louisiana Market Value
$105,500
Median United States Market Value
$235,294
Property Tax Assessment Values Across Slidell, St. Tammany County, Louisiana
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
70458 | $67,846 | $98,600 | $137,435 | $204,220 | $300,718 |
70460 | $51,542 | $81,350 | $110,740 | $158,290 | $209,138 |
70461 | $85,325 | $125,920 | $174,300 | $237,610 | $339,590 |
Source: Ownwell
Property Tax Bills Across Slidell, St. Tammany County, Louisiana
Median Slidell Tax Bill
$1,465
Median St. Tammany County Tax Bill
$1,777
Median Louisiana Tax Bill
$865
Median United States Tax Bill
$2,400
Property Tax Bills Across Slidell, St. Tammany County, Louisiana
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
70458 | $295 | $819 | $1,536 | $2,457 | $3,805 |
70460 | $39 | $372 | $911 | $1,586 | $2,371 |
70461 | $393 | $1,009 | $1,876 | $2,998 | $4,362 |
Source: Ownwell