ZIP Code 70570 — Opelousas, LA
70570 is a standard (street delivery) ZIP code serving Opelousas, Louisiana, in St. Landry 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 70570 at a glance
| ZIP code | 70570 |
|---|---|
| Primary city | Opelousas |
| State | Louisiana (LA) |
| County | St. Landry FIPS 22097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 37,565 |
| Coordinates | 30.531500, -92.108520 |
How ZIP+4 works in 70570
The four digits after the hyphen encode a delivery segment inside 70570. 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 70570 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 70570.
| ZIP | City | Distance |
|---|---|---|
| 70550 | Lawtell, LA | 4.9 mi |
| 70541 | Grand Coteau, LA | 8.6 mi |
| 70551 | Leonville, LA | 8.8 mi |
| 70584 | Sunset, LA | 9.9 mi |
| 70525 | Church Point, LA | 10.7 mi |
| 70577 | Port Barre, LA | 11.3 mi |
| 70589 | Washington, LA | 11.4 mi |
| 70524 | Chataignier, LA | 12.6 mi |
| 70512 | Arnaudville, LA | 13.7 mi |
| 70520 | Carencro, LA | 14.4 mi |
| 71345 | Lebeau, LA | 15.7 mi |
| 70516 | Branch, LA | 16.2 mi |
Questions about 70570
What is the ZIP+4 code for 70570?
70570 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 70570, you need to look up a specific street address to get them.
What city is 70570?
70570 is assigned to Opelousas, Louisiana, in St. Landry 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.