ZIP Code 88121 — House, NM
88121 is a standard (street delivery) ZIP code serving House, 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 88121 at a glance
| ZIP code | 88121 |
|---|---|
| Primary city | House |
| State | New Mexico (NM) |
| County | Quay FIPS 35037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 165 |
| Coordinates | 34.679790, -103.977210 |
How ZIP+4 works in 88121
The four digits after the hyphen encode a delivery segment inside 88121. 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 88121 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 88121.
| ZIP | City | Distance |
|---|---|---|
| 88427 | Mcalister, NM | 14 mi |
| 88134 | Taiban, NM | 21.1 mi |
| 88124 | Melrose, NM | 21.5 mi |
| 88417 | Cuervo, NM | 23.3 mi |
| 88401 | Tucumcari, NM | 29.9 mi |
| 88119 | Fort Sumner, NM | 33.2 mi |
| 88120 | Grady, NM | 34.9 mi |
| 88118 | Floyd, NM | 35.4 mi |
Questions about 88121
What is the ZIP+4 code for 88121?
88121 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 88121, you need to look up a specific street address to get them.
What city is 88121?
88121 is assigned to House, 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.