ZIP Code 70503 — Lafayette, LA
70503 is a standard (street delivery) ZIP code serving Lafayette, Louisiana, in Lafayette 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 70503 at a glance
| ZIP code | 70503 |
|---|---|
| Primary city | Lafayette |
| State | Louisiana (LA) |
| County | Lafayette FIPS 22055 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 28,643 |
| Coordinates | 30.173530, -92.059010 |
How ZIP+4 works in 70503
The four digits after the hyphen encode a delivery segment inside 70503. 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 70503 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.
Other ZIP codes in Lafayette
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 70503.
| ZIP | City | Distance |
|---|---|---|
| 70506 | Lafayette, LA | 2 mi |
| 70508 | Lafayette, LA | 2.1 mi |
| 70558 | Milton, LA | 5.1 mi |
| 70501 | Lafayette, LA | 6.1 mi |
| 70529 | Duson, LA | 6.4 mi |
| 70592 | Youngsville, LA | 7 mi |
| 70583 | Scott, LA | 7 mi |
| 70507 | Lafayette, LA | 7.8 mi |
| 70555 | Maurice, LA | 8 mi |
| 70518 | Broussard, LA | 8.2 mi |
| 70519 | Cade, LA | 11.1 mi |
| 70520 | Carencro, LA | 11.1 mi |
Questions about 70503
What is the ZIP+4 code for 70503?
70503 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 70503, you need to look up a specific street address to get them.
What city is 70503?
70503 is assigned to Lafayette, Louisiana, in Lafayette 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.