St. Landry Parish ZIP Codes

St. Landry Parish is a parish of Louisiana.

ZIP codes: 15
Cities & towns: 14
Area codes: 3
Land area: 923 sq mi

Every ZIP code in St. Landry Parish

705xx–713xx

The complete list of St. Landry Parish, LA ZIP codes with the city each one delivers to.
ZIP code	City
70512	Arnaudville
70535	Eunice
70541	Grand Coteau
70550	Lawtell
70551	Leonville
70570	Opelousas
70571	Opelousas
70577	Port Barre
70584	Sunset
70589	Washington
70750	Krotz Springs
71345	Lebeau
71353	Melville
71356	Morrow
71358	Palmetto

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in St. Landry Parish

A further 3 places in St. Landry Parish appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering St. Landry Parish

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

Where St. Landry Parish's ZIP codes sit

Each point is the reference point of one St. Landry 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. Landry 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.