ZIP Code 88231 — Eunice, NM
88231 is a standard (street delivery) ZIP code serving Eunice, New Mexico, in Lea 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 88231 at a glance
| ZIP code | 88231 |
|---|---|
| Primary city | Eunice |
| State | New Mexico (NM) |
| County | Lea FIPS 35025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 3,255 |
| Coordinates | 32.423760, -103.268730 |
How ZIP+4 works in 88231
The four digits after the hyphen encode a delivery segment inside 88231. 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 88231 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 88231.
| ZIP | City | Distance |
|---|---|---|
| 88265 | Monument, NM | 12 mi |
| 88252 | Jal, NM | 19.4 mi |
| 88240 | Hobbs, NM | 19.7 mi |
| 88244 | Hobbs, NM | 23.6 mi |
| 88242 | Hobbs, NM | 27.8 mi |
| 79714 | Andrews, TX | 33 mi |
| 79360 | Seminole, TX | 36.6 mi |
| 88264 | Maljamar, NM | 39.4 mi |
Questions about 88231
What is the ZIP+4 code for 88231?
88231 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 88231, you need to look up a specific street address to get them.
What city is 88231?
88231 is assigned to Eunice, New Mexico, in Lea 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.