ZIP Code 25420 — Gerrardstown, WV
25420 is a standard (street delivery) ZIP code serving Gerrardstown, West Virginia, in Berkeley 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 25420 at a glance
| ZIP code | 25420 |
|---|---|
| Primary city | Gerrardstown |
| State | West Virginia (WV) |
| County | Berkeley FIPS 54003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,945 |
| Coordinates | 39.380950, -78.119690 |
How ZIP+4 works in 25420
The four digits after the hyphen encode a delivery segment inside 25420. 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 25420 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 25420.
| ZIP | City | Distance |
|---|---|---|
| 25421 | Glengary, WV | 2.4 mi |
| 25428 | Inwood, WV | 5 mi |
| 25413 | Bunker Hill, WV | 5.7 mi |
| 22624 | Clear Brook, VA | 8.1 mi |
| 22603 | Winchester, VA | 8.2 mi |
| 25405 | Martinsburg, WV | 8.6 mi |
| 25403 | Martinsburg, WV | 9.3 mi |
| 25401 | Martinsburg, WV | 9.4 mi |
| 25430 | Kearneysville, WV | 10 mi |
| 25427 | Hedgesville, WV | 10.1 mi |
| 22625 | Cross Junction, VA | 10.3 mi |
| 22656 | Stephenson, VA | 11.4 mi |
Questions about 25420
What is the ZIP+4 code for 25420?
25420 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 25420, you need to look up a specific street address to get them.
What city is 25420?
25420 is assigned to Gerrardstown, West Virginia, in Berkeley 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.