ZIP Code 23417 — Onancock, VA
23417 is a standard (street delivery) ZIP code serving Onancock, 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 23417 at a glance
| ZIP code | 23417 |
|---|---|
| Primary city | Onancock |
| State | Virginia (VA) |
| County | Accomack FIPS 51001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,827 |
| Coordinates | 37.730610, -75.766870 |
How ZIP+4 works in 23417
The four digits after the hyphen encode a delivery segment inside 23417. 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 23417 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 23417.
| ZIP | City | Distance |
|---|---|---|
| 23441 | Tasley, VA | 3.9 mi |
| 23357 | Greenbush, VA | 5.4 mi |
| 23389 | Harborton, VA | 6.2 mi |
| 23410 | Melfa, VA | 6.5 mi |
| 23401 | Keller, VA | 7.1 mi |
| 23422 | Pungoteague, VA | 7.2 mi |
| 23301 | Accomac, VA | 7.6 mi |
| 23358 | Hacksneck, VA | 8 mi |
| 23418 | Onley, VA | 8.3 mi |
| 23421 | Parksley, VA | 8.7 mi |
| 23480 | Wachapreague, VA | 9.1 mi |
| 23308 | Bloxom, VA | 10.4 mi |
Questions about 23417
What is the ZIP+4 code for 23417?
23417 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 23417, you need to look up a specific street address to get them.
What city is 23417?
23417 is assigned to Onancock, 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.