ZIP Code 70591 — Welsh, LA
70591 is a standard (street delivery) ZIP code serving Welsh, Louisiana, in Jefferson Davis 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 70591 at a glance
| ZIP code | 70591 |
|---|---|
| Primary city | Welsh |
| State | Louisiana (LA) |
| County | Jefferson Davis FIPS 22053 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,983 |
| Coordinates | 30.256040, -92.839700 |
How ZIP+4 works in 70591
The four digits after the hyphen encode a delivery segment inside 70591. 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 70591 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 70591.
| ZIP | City | Distance |
|---|---|---|
| 70650 | Lacassine, LA | 5.1 mi |
| 70581 | Roanoke, LA | 6.2 mi |
| 70640 | Fenton, LA | 8.9 mi |
| 70546 | Jennings, LA | 10.3 mi |
| 70647 | Iowa, LA | 10.5 mi |
| 70646 | Hayes, LA | 11.5 mi |
| 70549 | Lake Arthur, LA | 14.2 mi |
| 70556 | Mermentau, LA | 15.9 mi |
| 70537 | Evangeline, LA | 16.3 mi |
| 70615 | Lake Charles, LA | 16.9 mi |
| 70532 | Elton, LA | 17 mi |
| 70648 | Kinder, LA | 17.4 mi |
Questions about 70591
What is the ZIP+4 code for 70591?
70591 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 70591, you need to look up a specific street address to get them.
What city is 70591?
70591 is assigned to Welsh, Louisiana, in Jefferson Davis 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.