ZIP Code 25303 — South Charleston, WV
25303 is a standard (street delivery) ZIP code serving South Charleston, West Virginia, in Kanawha 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 25303 at a glance
| ZIP code | 25303 |
|---|---|
| Primary city | South Charleston |
| State | West Virginia (WV) |
| County | Kanawha FIPS 54039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 7,396 |
| Coordinates | 38.360330, -81.686790 |
How ZIP+4 works in 25303
The four digits after the hyphen encode a delivery segment inside 25303. 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 25303 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 South Charleston
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 25303.
| ZIP | City | Distance |
|---|---|---|
| 25387 | Charleston, WV | 2.1 mi |
| 25301 | Charleston, WV | 3.3 mi |
| 25064 | Dunbar, WV | 3.5 mi |
| 25305 | Charleston, WV | 4.3 mi |
| 25112 | Institute, WV | 4.5 mi |
| 25314 | Charleston, WV | 4.7 mi |
| 25309 | South Charleston, WV | 5.1 mi |
| 25302 | Charleston, WV | 5.2 mi |
| 25313 | Charleston, WV | 5.4 mi |
| 25304 | Charleston, WV | 6.5 mi |
| 25311 | Charleston, WV | 7.2 mi |
| 25312 | Charleston, WV | 7.2 mi |
Questions about 25303
What is the ZIP+4 code for 25303?
25303 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 25303, you need to look up a specific street address to get them.
What city is 25303?
25303 is assigned to South Charleston, West Virginia, in Kanawha 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.