Opelousas Louisiana ZIP Codes

Opelousas holds 2 ZIP codes, all inside one parish and one postal prefix.

Every ZIP code in Opelousas

The complete list of Opelousas, Louisiana ZIP codes with the parish each falls in.
ZIP code	Parish
70570	St. Landry Parish
70571	St. Landry Parish

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Scope every ZIP code recorded for Opelousas. 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.

How these codes cluster

Every Opelousas ZIP code begins 705. Those first three digits identify the sectional center facility that processes mail for this part of Louisiana. Statewide that range covers 75 ZIP codes, so Opelousas accounts for 3% of it.

Every Louisiana ZIP prefix and the region it covers →

Area codes covering Opelousas

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 Opelousas occupies.

337 Area code 337

Opelousas Louisiana area codes in full →

Where Opelousas's ZIP codes sit

Each point is one Opelousas ZIP code, plotted from its record coordinates.

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

Cities near Opelousas

The closest places to Opelousas with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Washington Louisiana ZIP codes	6.4 mi	1 ZIP code
Leonville Louisiana ZIP codes	7.3 mi	1 ZIP code
Grand Coteau Louisiana ZIP codes	7.6 mi	1 ZIP code
Port Barre Louisiana ZIP codes	7.8 mi	1 ZIP code
Sunset Louisiana ZIP codes	8.3 mi	1 ZIP code
Church Point Louisiana ZIP codes	12 mi	1 ZIP code
Arnaudville Louisiana ZIP codes	12 mi	1 ZIP code
Chataignier Louisiana ZIP codes	14 mi	1 ZIP code

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