ZIP Code 00979 — Carolina, PR
00979 is a standard (street delivery) ZIP code serving Carolina, Puerto Rico, in Carolina 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 00979 at a glance
| ZIP code | 00979 |
|---|---|
| Primary city | Carolina |
| State | Puerto Rico (PR) |
| County | Carolina FIPS 72031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Puerto_Rico |
| Population | 14,776 |
| Coordinates | 18.437340, -66.008900 |
How ZIP+4 works in 00979
The four digits after the hyphen encode a delivery segment inside 00979. 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 00979 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 Carolina
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 00979.
| ZIP | City | Distance |
|---|---|---|
| 00982 | Carolina, PR | 2.2 mi |
| 00983 | Carolina, PR | 2.3 mi |
| 00913 | San Juan, PR | 2.4 mi |
| 00915 | San Juan, PR | 2.4 mi |
| 00924 | San Juan, PR | 2.6 mi |
| 00923 | San Juan, PR | 2.6 mi |
| 00917 | San Juan, PR | 2.9 mi |
| 00911 | San Juan, PR | 3.3 mi |
| 00912 | San Juan, PR | 3.4 mi |
| 00925 | San Juan, PR | 3.7 mi |
| 00909 | San Juan, PR | 3.9 mi |
| 00918 | San Juan, PR | 4 mi |
Questions about 00979
What is the ZIP+4 code for 00979?
00979 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 00979, you need to look up a specific street address to get them.
What city is 00979?
00979 is assigned to Carolina, Puerto Rico, in Carolina 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.