ZIP Code 00965 — Guaynabo, PR
00965 is a standard (street delivery) ZIP code serving Guaynabo, Puerto Rico, in Guaynabo 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 00965 at a glance
| ZIP code | 00965 |
|---|---|
| Primary city | Guaynabo |
| State | Puerto Rico (PR) |
| County | Guaynabo FIPS 72061 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Puerto_Rico |
| Population | 5,848 |
| Coordinates | 18.428530, -66.111750 |
How ZIP+4 works in 00965
The four digits after the hyphen encode a delivery segment inside 00965. 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 00965 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 Guaynabo
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 00965.
| ZIP | City | Distance |
|---|---|---|
| 00934 | Fort Buchanan, PR | 1.2 mi |
| 00920 | San Juan, PR | 1.6 mi |
| 00968 | Guaynabo, PR | 1.7 mi |
| 00962 | Catano, PR | 1.9 mi |
| 00966 | Guaynabo, PR | 2.1 mi |
| 00960 | Bayamon, PR | 2.2 mi |
| 00907 | San Juan, PR | 2.5 mi |
| 00901 | San Juan, PR | 2.6 mi |
| 00906 | San Juan, PR | 2.7 mi |
| 00918 | San Juan, PR | 2.9 mi |
| 00921 | San Juan, PR | 3 mi |
| 00909 | San Juan, PR | 3 mi |
Questions about 00965
What is the ZIP+4 code for 00965?
00965 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 00965, you need to look up a specific street address to get them.
What city is 00965?
00965 is assigned to Guaynabo, Puerto Rico, in Guaynabo 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.