Port Sulphur is a community in Plaquemines Parish, Louisiana, home to about 1,593 people across 5.4 square miles. Its ZIP code is 70083.
Homes sold for a median of $81 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Port Sulphur. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Port Sulphur’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Louis Armstrong New Orleans International Airport (MSY)50 miles away |
|---|---|
| Nearest city of 250,000+ | New Orleans, LA43 miles away |
| Nearest city of 1 million+ | Houston, TX343 miles away |
Straight-line distances from the center of Port Sulphur; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Port Sulphur had 1,677 residents in the 2020 census, down 46% since 2000.
It’s the 220th largest of 487 towns in Louisiana by population.
Plaquemines Parish grew from 13,039 residents in 1900 to 23,515 in 2020.
Plaquemines Parish, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 46°F. About 63.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Lsu Citrus Rsch Stn, LA weather station (11 miles away).
8,089 jobs at 644 businesses in Plaquemines Parish. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
6 doctors and other health care providers list an office in Port Sulphur.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 3 |
| Pharmacies | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Plaquemines Parish. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| South Plaquemines Elementary SchoolPort Sulphur | Pre-K–6 | 205 | Public | 0.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.