ZIP Code 79543 — Roby, TX
79543 is a standard (street delivery) ZIP code serving Roby, Texas, in Fisher 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 79543 at a glance
| ZIP code | 79543 |
|---|---|
| Primary city | Roby |
| State | Texas (TX) |
| County | Fisher FIPS 48151 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,091 |
| Coordinates | 32.718640, -100.387240 |
How ZIP+4 works in 79543
The four digits after the hyphen encode a delivery segment inside 79543. 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 79543 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 79543.
| ZIP | City | Distance |
|---|---|---|
| 79534 | Mccaulley, TX | 9.9 mi |
| 79560 | Sylvester, TX | 10.8 mi |
| 79546 | Rotan, TX | 12.6 mi |
| 79556 | Sweetwater, TX | 16.2 mi |
| 79561 | Trent, TX | 18.1 mi |
| 79520 | Hamlin, TX | 18.5 mi |
| 79526 | Hermleigh, TX | 21.8 mi |
| 79545 | Roscoe, TX | 23.5 mi |
| 79536 | Merkel, TX | 26.8 mi |
| 79532 | Loraine, TX | 28.6 mi |
| 79501 | Anson, TX | 28.7 mi |
| 79537 | Nolan, TX | 31.9 mi |
Questions about 79543
What is the ZIP+4 code for 79543?
79543 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 79543, you need to look up a specific street address to get them.
What city is 79543?
79543 is assigned to Roby, Texas, in Fisher 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.