ZIP Code 88401 — Tucumcari, NM
88401 is a standard (street delivery) ZIP code serving Tucumcari, New Mexico, in Quay 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 88401 at a glance
| ZIP code | 88401 |
|---|---|
| Primary city | Tucumcari |
| State | New Mexico (NM) |
| County | Quay FIPS 35037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 6,818 |
| Coordinates | 35.089840, -103.809420 |
How ZIP+4 works in 88401
The four digits after the hyphen encode a delivery segment inside 88401. 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 88401 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 88401.
| ZIP | City | Distance |
|---|---|---|
| 88427 | Mcalister, NM | 21.4 mi |
| 88120 | Grady, NM | 25.2 mi |
| 88434 | San Jon, NM | 26.6 mi |
| 88417 | Cuervo, NM | 27.3 mi |
| 88121 | House, NM | 29.8 mi |
| 88431 | Newkirk, NM | 31 mi |
| 88416 | Conchas Dam, NM | 33.4 mi |
| 88426 | Logan, NM | 35.4 mi |
| 88439 | Trementina, NM | 41.4 mi |
Questions about 88401
What is the ZIP+4 code for 88401?
88401 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 88401, you need to look up a specific street address to get them.
What city is 88401?
88401 is assigned to Tucumcari, New Mexico, in Quay 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.