ZIP Code 22643 — Markham, VA
22643 is a standard (street delivery) ZIP code serving Markham, Virginia, in Fauquier 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 22643 at a glance
| ZIP code | 22643 |
|---|---|
| Primary city | Markham |
| State | Virginia (VA) |
| County | Fauquier FIPS 51061 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 137 |
| Coordinates | 38.903400, -78.008010 |
How ZIP+4 works in 22643
The four digits after the hyphen encode a delivery segment inside 22643. 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 22643 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 22643.
| ZIP | City | Distance |
|---|---|---|
| 22642 | Linden, VA | 3.2 mi |
| 20144 | Delaplane, VA | 4 mi |
| 22639 | Hume, VA | 5.5 mi |
| 22623 | Chester Gap, VA | 7.8 mi |
| 20115 | Marshall, VA | 8.2 mi |
| 20130 | Paris, VA | 9.3 mi |
| 22630 | Front Royal, VA | 9.4 mi |
| 22640 | Huntly, VA | 9.4 mi |
| 20184 | Upperville, VA | 9.7 mi |
| 22627 | Flint Hill, VA | 11.1 mi |
| 22620 | Boyce, VA | 11.2 mi |
| 22663 | White Post, VA | 11.7 mi |
Questions about 22643
What is the ZIP+4 code for 22643?
22643 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 22643, you need to look up a specific street address to get them.
What city is 22643?
22643 is assigned to Markham, Virginia, in Fauquier 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.