ZIP Code 71016 — Castor, LA
71016 is a standard (street delivery) ZIP code serving Castor, Louisiana, in Bienville 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 71016 at a glance
| ZIP code | 71016 |
|---|---|
| Primary city | Castor |
| State | Louisiana (LA) |
| County | Bienville FIPS 22013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,852 |
| Coordinates | 32.228990, -93.108180 |
How ZIP+4 works in 71016
The four digits after the hyphen encode a delivery segment inside 71016. 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 71016 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 71016.
| ZIP | City | Distance |
|---|---|---|
| 71002 | Ashland, LA | 7.8 mi |
| 71045 | Jamestown, LA | 8.8 mi |
| 71008 | Bienville, LA | 11.1 mi |
| 71070 | Saline, LA | 11.8 mi |
| 71034 | Hall Summit, LA | 11.9 mi |
| 71068 | Ringgold, LA | 13 mi |
| 71039 | Heflin, LA | 17.3 mi |
| 71019 | Coushatta, LA | 17.5 mi |
| 71028 | Gibsland, LA | 18.1 mi |
| 71024 | Dubberly, LA | 18.1 mi |
| 71031 | Goldonna, LA | 19.6 mi |
| 71411 | Campti, LA | 22.4 mi |
Questions about 71016
What is the ZIP+4 code for 71016?
71016 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 71016, you need to look up a specific street address to get them.
What city is 71016?
71016 is assigned to Castor, Louisiana, in Bienville 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.