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St. Tammany County

St. Tammany County is a county in Louisiana. It pays for police, fire protection, public works and health and human services. In 2022, St. Tammany County spent about $358.1M. This is a Census of Governments estimate across all of its funds.

Collected and spent

In 2022, St. Tammany County spent about $358.1M. This is a Census of Governments estimate across all of its funds.

Spent
$358.1M
Fiscal year 2022 · Census of Governments estimate, all funds · spending

Where the money comes from

One tax.

Property tax
$3.184 per $100 of value
Source · St. Tammany Parish Assessor — 2024 Millages table, St. Tammany Parish 2024 property tax. Read on July 28, 2026.
DetailsSt. 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 modeled

Where it goes

Twelve service lines.

Other
$88.0M
Police
$79.2M
Fire
$59.1M
Public works
$48.1M
Health and human services
$19.6M
General government
$17.0M
Courts
$16.4M
Parks and recreation
$12.7M
Show all 12 linesShow fewer lines
Library
$12.4M
Debt service · past obligation
$5.2M
Transit
$0.3M
Corrections
$0.2M

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.

Rick Smith
Council Member, District 1
Term end not published
Re-check by October 10, 2027
Larry Rolling
Council Member, District 2
Term end not published
Re-check by October 10, 2027
Martha J. Cazaubon
Council Member, District 3
Term end not published
Re-check by October 10, 2027
Kathy Seiden
Council Member, District 4
Term end not published
Re-check by October 10, 2027
Pat Phillips
Council Member, District 5
Term end not published
Re-check by October 10, 2027
Cheryl Tanner
Council Member, District 6
Term end not published
Re-check by October 10, 2027
Joe Impastato
Council Member, District 7
Term end not published
Re-check by October 10, 2027
Pat Burke
Council Member, District 8
Term end not published
Re-check by October 10, 2027
David Cougle
Council Member, District 9
Term end not published
Re-check by October 10, 2027
Maureen "MO" O'Brien
Council Member, District 10
Term end not published
Re-check by October 10, 2027
Arthur Laughlin
Council Member, District 11
Term end not published
Re-check by October 10, 2027
Jerry Binder
Council Member, District 12
Term end not published
Re-check by October 10, 2027
Jeff Corbin
Council Member, District 13
Term end not published
Re-check by October 10, 2027
Jimmy Strickland
Council Member, District 14
Term end not published
Re-check by October 10, 2027
Mike Cooper
Parish President, at large
Term end not published
Re-check by October 10, 2027
Source · St. Tammany Parish Government, St. Tammany Parish Home Rule Charter, section 2-11. Read on October 10, 2026.
DetailsSt. 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.

Each yearThe parish budget year is the calendar year.
Next electionThe next Council election is in fall 2027.
Parish votes are held with the governor vote, every 4 years.

How to reach it

Council Administration: (985) 898-2591
Phone
councilmembers@stpgov.org
Email
21490 Koop Dr., Mandeville, LA 70471
Mailing address
Source · St. Tammany Parish Government, St. Tammany Parish Home Rule Charter, section 5-01. Read on October 10, 2026.
DetailsSt. 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

LacombeNot in Who Taxes Me yet
SlidellNot in Who Taxes Me yet
MandevilleNot in Who Taxes Me yet
CovingtonNot in Who Taxes Me yet

Sources

Taxes
St. Tammany Parish Assessor — 2024 Millages table, St. Tammany Parish 2024 property tax. Read on July 28, 2026.
DetailsSt. 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 modeled
Who decides
St. Tammany Parish Government, St. Tammany Parish Home Rule Charter, section 2-11. Read on October 10, 2026.
DetailsSt. Tammany Parish Home Rule Charter, section 2-11 (acts requiring an ordinance) and section 5-02 (read 2026-10-10)
When decisions happen
St. Tammany Parish Government, St. Tammany Parish Home Rule Charter, section 5-01. Read on October 10, 2026.
DetailsSt. Tammany Parish Home Rule Charter, section 5-01 (Fiscal year) (read 2026-10-10)
How to reach it
St. Tammany Parish Government, St. Tammany Parish Council page. Read on October 10, 2026.
DetailsSt. 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.