ZIP Code 88431 — Newkirk, NM
88431 is a standard (street delivery) ZIP code serving Newkirk, New Mexico, in Guadalupe 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 88431 at a glance
| ZIP code | 88431 |
|---|---|
| Primary city | Newkirk |
| State | New Mexico (NM) |
| County | Guadalupe FIPS 35019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 164 |
| Coordinates | 35.212560, -104.336770 |
How ZIP+4 works in 88431
The four digits after the hyphen encode a delivery segment inside 88431. 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 88431 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 88431.
| ZIP | City | Distance |
|---|---|---|
| 88421 | Garita, NM | 12 mi |
| 88416 | Conchas Dam, NM | 17.3 mi |
| 88439 | Trementina, NM | 19.1 mi |
| 88417 | Cuervo, NM | 20 mi |
| 88401 | Tucumcari, NM | 30.9 mi |
| 87746 | Solano, NM | 33.2 mi |
| 88435 | Santa Rosa, NM | 34.3 mi |
| 88427 | Mcalister, NM | 43.9 mi |
Questions about 88431
What is the ZIP+4 code for 88431?
88431 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 88431, you need to look up a specific street address to get them.
What city is 88431?
88431 is assigned to Newkirk, New Mexico, in Guadalupe 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.