ZIP Code 79312 — Amherst, TX
79312 is a standard (street delivery) ZIP code serving Amherst, Texas, in Lamb 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 79312 at a glance
| ZIP code | 79312 |
|---|---|
| Primary city | Amherst |
| State | Texas (TX) |
| County | Lamb FIPS 48279 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,130 |
| Coordinates | 34.062180, -102.367940 |
How ZIP+4 works in 79312
The four digits after the hyphen encode a delivery segment inside 79312. 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 79312 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 79312.
| ZIP | City | Distance |
|---|---|---|
| 79326 | Fieldton, TX | 9.1 mi |
| 79082 | Springlake, TX | 11.8 mi |
| 79339 | Littlefield, TX | 12.7 mi |
| 79031 | Earth, TX | 13.5 mi |
| 79369 | Spade, TX | 14.5 mi |
| 79064 | Olton, TX | 15.9 mi |
| 79371 | Sudan, TX | 19.5 mi |
| 79313 | Anton, TX | 20.9 mi |
| 79021 | Cotton Center, TX | 22.1 mi |
| 79380 | Whitharral, TX | 22.4 mi |
| 79353 | Pep, TX | 22.7 mi |
| 79324 | Enochs, TX | 24.2 mi |
Questions about 79312
What is the ZIP+4 code for 79312?
79312 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 79312, you need to look up a specific street address to get them.
What city is 79312?
79312 is assigned to Amherst, Texas, in Lamb 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.