ZIP Code 70729 — Erwinville, LA
70729 is a standard (street delivery) ZIP code serving Erwinville, Louisiana, in West Baton Rouge 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 70729 at a glance
| ZIP code | 70729 |
|---|---|
| Primary city | Erwinville |
| State | Louisiana (LA) |
| County | West Baton Rouge FIPS 22121 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,004 |
| Coordinates | 30.588910, -91.346710 |
How ZIP+4 works in 70729
The four digits after the hyphen encode a delivery segment inside 70729. 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 70729 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 70729.
| ZIP | City | Distance |
|---|---|---|
| 70773 | Rougon, LA | 1.7 mi |
| 70736 | Glynn, LA | 3.4 mi |
| 70752 | Lakeland, LA | 4.3 mi |
| 70749 | Jarreau, LA | 4.8 mi |
| 70783 | Ventress, LA | 6.7 mi |
| 70762 | Oscar, LA | 7.2 mi |
| 70767 | Port Allen, LA | 7.8 mi |
| 70807 | Baton Rouge, LA | 8.9 mi |
| 70813 | Baton Rouge, LA | 9.8 mi |
| 70755 | Livonia, LA | 10.9 mi |
| 70760 | New Roads, LA | 11 mi |
| 70791 | Zachary, LA | 12 mi |
Questions about 70729
What is the ZIP+4 code for 70729?
70729 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 70729, you need to look up a specific street address to get them.
What city is 70729?
70729 is assigned to Erwinville, Louisiana, in West Baton Rouge 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.