ZIP Code 25143 — Nitro, WV
25143 is a standard (street delivery) ZIP code serving Nitro, 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 25143 at a glance
| ZIP code | 25143 |
|---|---|
| Primary city | Nitro |
| State | West Virginia (WV) |
| County | Kanawha FIPS 54039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 8,714 |
| Coordinates | 38.420010, -81.824140 |
How ZIP+4 works in 25143
The four digits after the hyphen encode a delivery segment inside 25143. 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 25143 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 25143.
| ZIP | City | Distance |
|---|---|---|
| 25313 | Charleston, WV | 3.6 mi |
| 25177 | Saint Albans, WV | 3.8 mi |
| 25112 | Institute, WV | 4.1 mi |
| 25560 | Scott Depot, WV | 4.5 mi |
| 25064 | Dunbar, WV | 5.1 mi |
| 25159 | Poca, WV | 6.1 mi |
| 25011 | Bancroft, WV | 6.4 mi |
| 25202 | Tornado, WV | 7.4 mi |
| 25109 | Hometown, WV | 7.9 mi |
| 25213 | Winfield, WV | 7.9 mi |
| 25309 | South Charleston, WV | 8.3 mi |
| 25303 | South Charleston, WV | 8.5 mi |
Questions about 25143
What is the ZIP+4 code for 25143?
25143 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 25143, you need to look up a specific street address to get them.
What city is 25143?
25143 is assigned to Nitro, 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.