ZIP Code 70037 — Belle Chasse, LA
70037 is a standard (street delivery) ZIP code serving Belle Chasse, 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 70037 at a glance
| ZIP code | 70037 |
|---|---|
| Primary city | Belle Chasse |
| State | Louisiana (LA) |
| County | Plaquemines FIPS 22075 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 16,639 |
| Coordinates | 29.786690, -90.015230 |
How ZIP+4 works in 70037
The four digits after the hyphen encode a delivery segment inside 70037. 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 70037 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 70037.
| ZIP | City | Distance |
|---|---|---|
| 70040 | Braithwaite, LA | 5.9 mi |
| 70058 | Harvey, LA | 6.5 mi |
| 70067 | Lafitte, LA | 7 mi |
| 70056 | Gretna, LA | 7.1 mi |
| 70072 | Marrero, LA | 7.3 mi |
| 70036 | Barataria, LA | 9 mi |
| 70131 | New Orleans, LA | 9 mi |
| 70053 | Gretna, LA | 9.1 mi |
| 70114 | New Orleans, LA | 10.4 mi |
| 70092 | Violet, LA | 10.6 mi |
| 70115 | New Orleans, LA | 10.8 mi |
| 70130 | New Orleans, LA | 10.8 mi |
Questions about 70037
What is the ZIP+4 code for 70037?
70037 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 70037, you need to look up a specific street address to get them.
What city is 70037?
70037 is assigned to Belle Chasse, 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.