ZIP Code 27403 — Greensboro, NC
27403 is a standard (street delivery) ZIP code serving Greensboro, North Carolina, in Guilford 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 27403 at a glance
| ZIP code | 27403 |
|---|---|
| Primary city | Greensboro |
| State | North Carolina (NC) |
| County | Guilford FIPS 37081 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 22,557 |
| Coordinates | 36.064060, -79.825380 |
How ZIP+4 works in 27403
The four digits after the hyphen encode a delivery segment inside 27403. 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 27403 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 Greensboro
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 27403.
| ZIP | City | Distance |
|---|---|---|
| 27412 | Greensboro, NC | 0.9 mi |
| 27408 | Greensboro, NC | 2.8 mi |
| 27411 | Greensboro, NC | 3.1 mi |
| 27401 | Greensboro, NC | 3.3 mi |
| 27407 | Greensboro, NC | 4.6 mi |
| 27410 | Greensboro, NC | 5.3 mi |
| 27406 | Greensboro, NC | 5.6 mi |
| 27405 | Greensboro, NC | 6.1 mi |
| 27409 | Greensboro, NC | 6.9 mi |
| 27282 | Jamestown, NC | 7.4 mi |
| 27455 | Greensboro, NC | 8.3 mi |
| 27301 | Mcleansville, NC | 9.5 mi |
Questions about 27403
What is the ZIP+4 code for 27403?
27403 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 27403, you need to look up a specific street address to get them.
What city is 27403?
27403 is assigned to Greensboro, North Carolina, in Guilford 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.