ZIP Code 87401 — Farmington, NM
87401 is a standard (street delivery) ZIP code serving Farmington, New Mexico, in San Juan 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 87401 at a glance
| ZIP code | 87401 |
|---|---|
| Primary city | Farmington |
| State | New Mexico (NM) |
| County | San Juan FIPS 35045 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 45,229 |
| Coordinates | 36.738240, -108.183770 |
How ZIP+4 works in 87401
The four digits after the hyphen encode a delivery segment inside 87401. 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 87401 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.
Other ZIP codes in Farmington
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 87401.
| ZIP | City | Distance |
|---|---|---|
| 87402 | Farmington, NM | 4.2 mi |
| 87415 | Flora Vista, NM | 7.7 mi |
| 87417 | Kirtland, NM | 9 mi |
| 87418 | La Plata, NM | 14.7 mi |
| 87416 | Fruitland, NM | 17.6 mi |
| 87410 | Aztec, NM | 18.3 mi |
| 87421 | Waterflow, NM | 19.7 mi |
| 87413 | Bloomfield, NM | 22.8 mi |
| 81326 | Hesperus, CO | 28.4 mi |
| 87499 | Farmington, NM | 29 mi |
| 81303 | Durango, CO | 32.5 mi |
| 81334 | Towaoc, CO | 36.1 mi |
Questions about 87401
What is the ZIP+4 code for 87401?
87401 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 87401, you need to look up a specific street address to get them.
What city is 87401?
87401 is assigned to Farmington, New Mexico, in San Juan 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.