ZIP Code 87544 — Los Alamos, NM
87544 is a standard (street delivery) ZIP code serving Los Alamos, New Mexico, in Sandoval 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 87544 at a glance
| ZIP code | 87544 |
|---|---|
| Primary city | Los Alamos |
| State | New Mexico (NM) |
| County | Sandoval FIPS 35043 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 13,598 |
| Coordinates | 35.786900, -106.319140 |
How ZIP+4 works in 87544
The four digits after the hyphen encode a delivery segment inside 87544. 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 87544 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 87544.
| ZIP | City | Distance |
|---|---|---|
| 87547 | White Rock, NM | 6.5 mi |
| 87083 | Cochiti Lake, NM | 10.1 mi |
| 87041 | Pena Blanca, NM | 12.8 mi |
| 87072 | Cochiti Pueblo, NM | 13 mi |
| 87507 | Santa Fe, NM | 16.3 mi |
| 87025 | Jemez Springs, NM | 17.2 mi |
| 87532 | Espanola, NM | 17.9 mi |
| 87052 | Santo Domingo Pueblo, NM | 18 mi |
| 87044 | Ponderosa, NM | 19.6 mi |
| 87506 | Santa Fe, NM | 19.8 mi |
| 87567 | Santa Cruz, NM | 22.1 mi |
| 87537 | Hernandez, NM | 22.3 mi |
Questions about 87544
What is the ZIP+4 code for 87544?
87544 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 87544, you need to look up a specific street address to get them.
What city is 87544?
87544 is assigned to Los Alamos, New Mexico, in Sandoval 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?
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