J. Collin Sims
District Attorney — 22nd Judicial District
St. Tammany & Washington Parishes
About
J. Collin Sims is District Attorney for Louisiana's 22nd Judicial District, which covers St. Tammany and Washington parishes, including Slidell. A Mandeville native, he graduated from Saint Paul's High School, Mississippi College and Loyola University New Orleans College of Law. He was an assistant district attorney in Orleans Parish and an Assistant U.S. Attorney before becoming chief of the 22nd JDC Criminal Division in 2015 and later First Assistant DA. He was sworn in as interim DA in November 2023 after the death of District Attorney Warren Montgomery, won the March 23, 2024 election, and was re-elected without opposition in August 2026.
What the District Attorney does for you
Decides who gets prosecuted and for what in St. Tammany and Washington parishes — which charges to bring, which cases to drop, what plea deals to offer. One of the most powerful offices on the ballot, and one of the lowest-turnout. 6-year term.
Want to vote for this seat? Here is how.
Whether you want to keep this officeholder or replace them, the process is the same. Work down the list.
Step 1 — Check that you are registered
Takes about a minute. If you moved, changed your name, or have not voted in a while, check anyway — registrations go inactive.
Step 2 — Make sure you have photo ID
A Louisiana driver’s license, state ID, LA Wallet digital license, or military ID all work.
No photo ID? Right now you can still vote — ask the poll worker for the Voter Identification Affidavit. That option ends July 1, 2027. If you are a registered voter, the Louisiana state ID card is free. Bring your voter information card to any OMV.
Where to get an ID
Registrar of Voters — Slidell Office
The Towers Building, 520 Old Spanish Trail, Suite 2F, Slidell, LA 70458 · (985) 646-4125
Mon–Fri, 8:00 AM – 4:30 PM (closed 1–2 PM for lunch)
Go here for your voter information card, which gets you the free ID.
Registrar of Voters — Covington Office
601 N. Jefferson Ave., Covington, LA 70433 · (985) 809-5500
Mon–Fri, 8:00 AM – 4:30 PM
OMV offices
Take your voter information card to any Louisiana OMV office for the free state ID. Office hours and locations change, so check the official list before you go.
Need help covering the cost of a birth certificate or other document? VoteRiders helps free of charge.
Step 3 — Know your deadlines
Register online: 20 days before election day.
Register by mail or in person: 30 days before election day — the earlier deadline, do not wait.
Election dates change every cycle. The official calendar always shows current dates.
Step 4 — Check your party registration
Louisiana now holds closed party primaries for U.S. Senate, Louisiana Supreme Court, BESE, and the Public Service Commission — in those primaries your party registration decides which candidates you see.
November 3, 2026: every registered voter can vote in every race on the ballot. The U.S. House race is an open primary this year — all candidates on one ballot regardless of party, with a December 12 runoff if no one wins a majority. Sheriff, judges, marshal, school board, mayor, and council races are always open to all voters.
Step 5 — See what is on your ballot
Your ballot depends on your address. Look it up before you go so you are not deciding in the booth.
Step 6 — Voting spots
On election day you must go to your own assigned polling place, which depends on your address and can change between elections. Look it up first.
During early voting you can use any of the three St. Tammany sites below, no matter where in the parish you live. No excuse needed. For the November 3, 2026 election, early voting runs Tuesday, October 20 through Tuesday, October 27, 8:30 AM – 6:00 PM, closed Sunday.
The Towers Building — Slidell
520 Old Spanish Trail, Slidell, LA 70458
First-floor conference and training area. The Registrar’s Slidell office is in the same building.
Koop Drive Council Chambers — Mandeville
21490 Koop Drive, Mandeville, LA 70471
Council Chambers, the first building on the left.
Justice Center Parking Garage — Covington
601 N. Jefferson Avenue, Covington, LA 70433
Across from the St. Tammany Justice Center downtown. Same address as the Registrar’s Covington office.
Step 7 — Contact the office directly
You do not have to wait for an election to be heard. These offices take calls and messages from the public. Tap to call or email directly.
Mayor of Slidell
Mayor’s Office, 2055 Second Street, Slidell, LA 70458
Slidell City Council
2045 Second Street, Suite 318, Slidell, LA 70458
Meetings: second and fourth Tuesdays, 6:30 PM, 3rd floor.
St. Tammany Parish President
21490 Koop Drive, Mandeville, LA 70471
District Attorney — Slidell Office
520 Old Spanish Trail, Slidell, LA 70458
22nd Judicial District (St. Tammany and Washington parishes)
St. Tammany Parish Sheriff’s Office
Slidell Administrative Building, 300 Brownswitch Rd., Slidell, LA 70458
St. Tammany Parish Assessor — Slidell Office
The Towers Building, 520 Old Spanish Trail, 2nd Floor, Ste. 2F, Slidell, LA 70458
St. Tammany Parish School Board
C.J. Schoen Administrative Complex, 321 North Theard St., Covington, LA 70433
City Court of East St. Tammany
501 Bouscaren Street, Slidell, LA 70458
The Slidell City Marshal’s office is at the same address.
Clerk of Court — Slidell Annex
The Towers Building, 520 Old Spanish Trail, 5th Floor, Slidell, LA 70458
Mon–Fri, 8:30 AM – 4:30 PM (closed 1–2 PM)
Registrar of Voters
Slidell: The Towers Building, 520 Old Spanish Trail, Suite 2F, Slidell, LA 70458
Covington: 601 N. Jefferson Ave., Covington, LA 70433
Verified September 2026. Deadlines, locations, and rules change every cycle — confirm current dates with the St. Tammany Registrar of Voters or the Louisiana Secretary of State.