ZIP Code 27518 — Cary, NC
27518 is a standard (street delivery) ZIP code serving Cary, North Carolina, in Wake 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 27518 at a glance
| ZIP code | 27518 |
|---|---|
| Primary city | Cary |
| State | North Carolina (NC) |
| County | Wake FIPS 37183 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 19,735 |
| Coordinates | 35.729270, -78.773600 |
How ZIP+4 works in 27518
The four digits after the hyphen encode a delivery segment inside 27518. 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 27518 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 Cary
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 27518.
| ZIP | City | Distance |
|---|---|---|
| 27511 | Cary, NC | 2.4 mi |
| 27606 | Raleigh, NC | 3.2 mi |
| 27539 | Apex, NC | 4.2 mi |
| 27513 | Cary, NC | 5.3 mi |
| 27695 | Raleigh, NC | 6.6 mi |
| 27607 | Raleigh, NC | 6.9 mi |
| 27502 | Apex, NC | 7.6 mi |
| 27603 | Raleigh, NC | 7.7 mi |
| 27605 | Raleigh, NC | 7.9 mi |
| 27601 | Raleigh, NC | 8.4 mi |
| 27519 | Cary, NC | 8.4 mi |
| 27608 | Raleigh, NC | 9 mi |
Questions about 27518
What is the ZIP+4 code for 27518?
27518 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 27518, you need to look up a specific street address to get them.
What city is 27518?
27518 is assigned to Cary, North Carolina, in Wake 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.