ZIP Code 70083 — Port Sulphur, LA
70083 is a standard (street delivery) ZIP code serving Port Sulphur, Louisiana, in Plaquemines County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 70083 at a glance
| ZIP code | 70083 |
|---|---|
| Primary city | Port Sulphur |
| State | Louisiana (LA) |
| County | Plaquemines FIPS 22075 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,317 |
| Coordinates | 29.523420, -89.852110 |
How ZIP+4 works in 70083
The four digits after the hyphen encode a delivery segment inside 70083. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 70083 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 70083.
| ZIP | City | Distance |
|---|---|---|
| 70082 | Pointe A La Hache, LA | 6.4 mi |
| 70040 | Braithwaite, LA | 16.7 mi |
| 70050 | Empire, LA | 18.2 mi |
| 70067 | Lafitte, LA | 20.3 mi |
| 70036 | Barataria, LA | 20.4 mi |
| 70037 | Belle Chasse, LA | 20.6 mi |
| 70085 | Saint Bernard, LA | 20.9 mi |
| 70345 | Cut Off, LA | 23.1 mi |
| 70358 | Grand Isle, LA | 23.9 mi |
| 70357 | Golden Meadow, LA | 25.4 mi |
| 70092 | Violet, LA | 26.1 mi |
| 70041 | Buras, LA | 26.5 mi |
Questions about 70083
What is the ZIP+4 code for 70083?
70083 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 70083, you need to look up a specific street address to get them.
What city is 70083?
70083 is assigned to Port Sulphur, Louisiana, in Plaquemines County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.