ZIP Code 27857 — Oak City, NC
27857 is a standard (street delivery) ZIP code serving Oak City, North Carolina, in Martin 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 27857 at a glance
| ZIP code | 27857 |
|---|---|
| Primary city | Oak City |
| State | North Carolina (NC) |
| County | Martin FIPS 37117 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,099 |
| Coordinates | 35.969680, -77.271980 |
How ZIP+4 works in 27857
The four digits after the hyphen encode a delivery segment inside 27857. 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 27857 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 27857.
| ZIP | City | Distance |
|---|---|---|
| 27840 | Hamilton, NC | 3.3 mi |
| 27841 | Hassell, NC | 4.2 mi |
| 27843 | Hobgood, NC | 7.1 mi |
| 27849 | Lewiston Woodville, NC | 7.7 mi |
| 27881 | Speed, NC | 9.5 mi |
| 27861 | Parmele, NC | 10.8 mi |
| 27825 | Everetts, NC | 10.8 mi |
| 27871 | Robersonville, NC | 10.8 mi |
| 27812 | Bethel, NC | 12.8 mi |
| 27874 | Scotland Neck, NC | 13.4 mi |
| 27886 | Tarboro, NC | 14.7 mi |
| 27819 | Conetoe, NC | 14.9 mi |
Questions about 27857
What is the ZIP+4 code for 27857?
27857 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 27857, you need to look up a specific street address to get them.
What city is 27857?
27857 is assigned to Oak City, North Carolina, in Martin 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.