ZIP Code 27523 — Apex, NC
27523 is a standard (street delivery) ZIP code serving Apex, North Carolina, in Chatham 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 27523 at a glance
| ZIP code | 27523 |
|---|---|
| Primary city | Apex |
| State | North Carolina (NC) |
| County | Chatham FIPS 37037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 20,269 |
| Coordinates | 35.771020, -78.953670 |
How ZIP+4 works in 27523
The four digits after the hyphen encode a delivery segment inside 27523. 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 27523 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 Apex
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 27523.
| ZIP | City | Distance |
|---|---|---|
| 27502 | Apex, NC | 4.3 mi |
| 27519 | Cary, NC | 4.5 mi |
| 27517 | Chapel Hill, NC | 6.7 mi |
| 27713 | Durham, NC | 7.9 mi |
| 27513 | Cary, NC | 8.8 mi |
| 27562 | New Hill, NC | 9.1 mi |
| 27560 | Morrisville, NC | 9.4 mi |
| 27511 | Cary, NC | 9.5 mi |
| 27539 | Apex, NC | 10.2 mi |
| 27518 | Cary, NC | 10.5 mi |
| 27599 | Chapel Hill, NC | 10.7 mi |
| 27709 | Durham, NC | 11 mi |
Questions about 27523
What is the ZIP+4 code for 27523?
27523 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 27523, you need to look up a specific street address to get them.
What city is 27523?
27523 is assigned to Apex, North Carolina, in Chatham 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.