Collected and spent
In 2022, St. Tammany County spent about $358.1M. This is a Census of Governments estimate across all of its funds.
Where the money comes from
One tax.
Details
St. Tammany Parish 2024 property tax — parish-wide non-school bundle 31.84 mills on 10% AV for an in-city (Slidell) address (effective ~0.32% on market), DERIVED from the assessor's 2024 MILLAGES table (dated 10/15/2024): printed parish-wide total 88.74 minus printed school block 58.34 = 30.40, plus the in-municipality Alimony 2 rate 1.44 (rural addresses pay 2.89 instead). Components include law enforcement 10.31, library 5.35 (the library's own site confirms 5.35 collected in 2024), coroner 2.66, mosquito 3.10, juvenile center 2.49, assessor 2.31. LABELED VARIANCE: Slidell addresses also pay City of Slidell 25.05, Fire District 1 32.41, and hospital/lighting district levies not carried on this parish-wide line; Public Health millage expired for 2024. Corrects the prior crude 45-mill model. Derived — held modeledWhere it goes
Twelve service lines.
Show all 12 linesShow fewer lines
Bars in both tables share one scale. Hatched lines pay for past obligations, not current services.
Who decides
The Council passes ordinances that levy taxes and adopt the budget. The Parish President sends the budget plan at least 90 days before the year starts. The Council holds a public hearing and then votes. 14 Council members, each elected from 1 of 14 districts.
Details
St. Tammany Parish Home Rule Charter, section 2-11 (acts requiring an ordinance) and section 5-02 (read 2026-10-10)When decisions happen
The budget year runs January 1 through December 31. The Parish President sends the Council a plan at least 90 days before the year starts. The Council holds a public hearing and then votes.
How to reach it
Details
St. Tammany Parish Home Rule Charter, section 5-01 (Fiscal year) (read 2026-10-10)Also on this tax bill
A St. Tammany County address pays these governments too. Which cities apply depends on the address.
On every bill in St. Tammany County
On some bills, depending on the address
Cities: 4
Sources
Details
St. Tammany Parish 2024 property tax — parish-wide non-school bundle 31.84 mills on 10% AV for an in-city (Slidell) address (effective ~0.32% on market), DERIVED from the assessor's 2024 MILLAGES table (dated 10/15/2024): printed parish-wide total 88.74 minus printed school block 58.34 = 30.40, plus the in-municipality Alimony 2 rate 1.44 (rural addresses pay 2.89 instead). Components include law enforcement 10.31, library 5.35 (the library's own site confirms 5.35 collected in 2024), coroner 2.66, mosquito 3.10, juvenile center 2.49, assessor 2.31. LABELED VARIANCE: Slidell addresses also pay City of Slidell 25.05, Fire District 1 32.41, and hospital/lighting district levies not carried on this parish-wide line; Public Health millage expired for 2024. Corrects the prior crude 45-mill model. Derived — held modeledDetails
St. Tammany Parish Home Rule Charter, section 2-11 (acts requiring an ordinance) and section 5-02 (read 2026-10-10)Details
St. Tammany Parish Home Rule Charter, section 5-01 (Fiscal year) (read 2026-10-10)Details
St. Tammany Parish Council page (read 2026-10-10)To act on what you have read
Who Taxes Me describes. These three tools, made by the same team, are where you can do something about it. Each opens in a new tab.