ZIP Code 27278 — Hillsborough, NC
27278 is a standard (street delivery) ZIP code serving Hillsborough, North Carolina, in Orange 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 27278 at a glance
| ZIP code | 27278 |
|---|---|
| Primary city | Hillsborough |
| State | North Carolina (NC) |
| County | Orange FIPS 37135 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 27,925 |
| Coordinates | 36.086730, -79.087780 |
How ZIP+4 works in 27278
The four digits after the hyphen encode a delivery segment inside 27278. 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 27278 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.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 27278.
| ZIP | City | Distance |
|---|---|---|
| 27243 | Efland, NC | 6 mi |
| 27705 | Durham, NC | 7.3 mi |
| 27514 | Chapel Hill, NC | 8.6 mi |
| 27231 | Cedar Grove, NC | 9.4 mi |
| 27708 | Durham, NC | 10 mi |
| 27712 | Durham, NC | 10.2 mi |
| 27302 | Mebane, NC | 10.5 mi |
| 27707 | Durham, NC | 11.8 mi |
| 27541 | Hurdle Mills, NC | 12.1 mi |
| 27510 | Carrboro, NC | 12.1 mi |
| 27701 | Durham, NC | 12.2 mi |
| 27516 | Chapel Hill, NC | 12.5 mi |
Questions about 27278
What is the ZIP+4 code for 27278?
27278 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 27278, you need to look up a specific street address to get them.
What city is 27278?
27278 is assigned to Hillsborough, North Carolina, in Orange 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.