ZIP Code 23421 — Parksley, VA
23421 is a standard (street delivery) ZIP code serving Parksley, Virginia, in Accomack 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 23421 at a glance
| ZIP code | 23421 |
|---|---|
| Primary city | Parksley |
| State | Virginia (VA) |
| County | Accomack FIPS 51001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,290 |
| Coordinates | 37.765640, -75.614290 |
How ZIP+4 works in 23421
The four digits after the hyphen encode a delivery segment inside 23421. 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 23421 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 23421.
| ZIP | City | Distance |
|---|---|---|
| 23357 | Greenbush, VA | 3.3 mi |
| 23414 | Nelsonia, VA | 3.6 mi |
| 23308 | Bloxom, VA | 4.1 mi |
| 23301 | Accomac, VA | 5.8 mi |
| 23441 | Tasley, VA | 5.9 mi |
| 23407 | Mappsville, VA | 6.3 mi |
| 23409 | Mears, VA | 8.1 mi |
| 23302 | Assawoman, VA | 8.2 mi |
| 23359 | Hallwood, VA | 8.4 mi |
| 23417 | Onancock, VA | 8.7 mi |
| 23418 | Onley, VA | 9.3 mi |
| 23442 | Temperanceville, VA | 9.7 mi |
Questions about 23421
What is the ZIP+4 code for 23421?
23421 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 23421, you need to look up a specific street address to get them.
What city is 23421?
23421 is assigned to Parksley, Virginia, in Accomack 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.