ZIP Code 96928 — Agat, GU
96928 is a standard (street delivery) ZIP code serving Agat, GU, in Guam 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 96928 at a glance
| ZIP code | 96928 |
|---|---|
| Primary city | Agat |
| State | GU (GU) |
| County | Guam FIPS 66010 |
| ZIP type | Standard (street delivery) |
| Time zone | Pacific/Guam |
| Coordinates | 13.356260, 144.657310 |
How ZIP+4 works in 96928
The four digits after the hyphen encode a delivery segment inside 96928. 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 96928 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 96928.
| ZIP | City | Distance |
|---|---|---|
| 96915 | Santa Rita, GU | 3.6 mi |
| 96916 | Merizo, GU | 6.6 mi |
| 96917 | Inarajan, GU | 7.4 mi |
| 96910 | Hagatna, GU | 9.3 mi |
| 96913 | Barrigada, GU | 13.5 mi |
| 96929 | Yigo, GU | 20.6 mi |
Questions about 96928
What is the ZIP+4 code for 96928?
96928 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 96928, you need to look up a specific street address to get them.
What city is 96928?
96928 is assigned to Agat, GU, in Guam 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.