St. John the Baptist Parish ZIP Codes

St. John the Baptist Parish is a parish of Louisiana.

ZIP codes: 6
Cities & towns: 5
Area codes: 1
Land area: 214 sq mi

Every ZIP code in St. John the Baptist Parish

700xx

The complete list of St. John the Baptist Parish, LA ZIP codes with the city each one delivers to.
ZIP code	City
70049	Edgard
70051	Garyville
70068	La Place
70069	La Place
70076	Mount Airy
70084	Reserve

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 St. John the Baptist Parish codes above are listed without a column we would have to invent.

Area codes covering St. John the Baptist Parish

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the parish without matching its edges.

985 Area code 985

Where St. John the Baptist Parish's ZIP codes sit

Each point is the reference point of one St. John the Baptist Parish ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in St. John the Baptist Parish. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.