ZIP Code 70589 — Washington, LA
70589 is a standard (street delivery) ZIP code serving Washington, 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 70589 at a glance
| ZIP code | 70589 |
|---|---|
| Primary city | Washington |
| State | Louisiana (LA) |
| County | St. Landry FIPS 22097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,875 |
| Coordinates | 30.685840, -92.040980 |
How ZIP+4 works in 70589
The four digits after the hyphen encode a delivery segment inside 70589. 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 70589 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 70589.
| ZIP | City | Distance |
|---|---|---|
| 71345 | Lebeau, LA | 4.9 mi |
| 71358 | Palmetto, LA | 10.2 mi |
| 71356 | Morrow, LA | 10.3 mi |
| 70570 | Opelousas, LA | 11.4 mi |
| 70577 | Port Barre, LA | 11.9 mi |
| 71322 | Bunkie, LA | 14.1 mi |
| 71353 | Melville, LA | 14.5 mi |
| 70550 | Lawtell, LA | 14.7 mi |
| 71362 | Plaucheville, LA | 14.9 mi |
| 71333 | Evergreen, LA | 15.1 mi |
| 70551 | Leonville, LA | 15.5 mi |
| 70541 | Grand Coteau, LA | 18.3 mi |
Questions about 70589
What is the ZIP+4 code for 70589?
70589 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 70589, you need to look up a specific street address to get them.
What city is 70589?
70589 is assigned to Washington, 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.