Sulphur Louisiana ZIP Codes
Sulphur holds 3 ZIP codes, all inside one parish and one postal prefix.
Every ZIP code in Sulphur
| ZIP code | Parish |
|---|---|
| 70663 | Calcasieu Parish |
| 70664 | Calcasieu Parish |
| 70665 | Calcasieu 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Sulphur codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Sulphur. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Sulphur ZIP code begins 706. Those first three digits identify the sectional center facility that processes mail for this part of Louisiana. Statewide that range covers 44 ZIP codes, so Sulphur accounts for 7% of it.
Every Louisiana ZIP prefix and the region it covers →
Area codes covering Sulphur
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 Sulphur occupies.
Sulphur Louisiana area codes in full →
Where Sulphur's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Sulphur
| City | Distance | ZIP codes |
|---|---|---|
| Westlake Louisiana ZIP codes | 5.9 mi | 1 ZIP code |
| Lake Charles Louisiana ZIP codes | 8.9 mi | 11 ZIP codes |
| Vinton Louisiana ZIP codes | 14 mi | 1 ZIP code |
| Dequincy Louisiana ZIP codes | 16 mi | 1 ZIP code |
| Iowa Louisiana ZIP codes | 21 mi | 1 ZIP code |
| Reeves Louisiana ZIP codes | 28 mi | 1 ZIP code |
| Fenton Louisiana ZIP codes | 28 mi | 1 ZIP code |
| Welsh Louisiana ZIP codes | 33 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.