Slidell Louisiana ZIP Codes

Slidell holds 5 ZIP codes, all inside one parish and one postal prefix.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Slidell codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Slidell. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Slidell ZIP code begins 704. Those first three digits identify the sectional center facility that processes mail for this part of Louisiana. Statewide that range covers 47 ZIP codes, so Slidell accounts for 11% of it.

Every Louisiana ZIP prefix and the region it covers →

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Slidell occupies.

• 985 Area code 985

Slidell Louisiana area codes in full →

Straight-line distance between place reference points, not driving distance.