ZIP Code 28733 — Fontana Dam, NC
28733 is a standard (street delivery) ZIP code serving Fontana Dam, North Carolina, in Graham 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 28733 at a glance
| ZIP code | 28733 |
|---|---|
| Primary city | Fontana Dam |
| State | North Carolina (NC) |
| County | Graham FIPS 37075 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 63 |
| Coordinates | 35.435360, -83.784030 |
How ZIP+4 works in 28733
The four digits after the hyphen encode a delivery segment inside 28733. 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 28733 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 28733.
| ZIP | City | Distance |
|---|---|---|
| 28771 | Robbinsville, NC | 7.6 mi |
| 28702 | Almond, NC | 9.2 mi |
| 37882 | Townsend, TN | 11.8 mi |
| 37878 | Tallassee, TN | 15.7 mi |
| 28901 | Andrews, NC | 16.2 mi |
| 28713 | Bryson City, NC | 16.3 mi |
| 28781 | Topton, NC | 17.3 mi |
| 28719 | Cherokee, NC | 18.8 mi |
| 37803 | Maryville, TN | 19.6 mi |
| 37885 | Vonore, TN | 19.8 mi |
| 28905 | Marble, NC | 20.8 mi |
| 37886 | Walland, TN | 21.2 mi |
Questions about 28733
What is the ZIP+4 code for 28733?
28733 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 28733, you need to look up a specific street address to get them.
What city is 28733?
28733 is assigned to Fontana Dam, North Carolina, in Graham 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.