ZIP Code 23821 — Alberta, VA
23821 is a standard (street delivery) ZIP code serving Alberta, Virginia, in Brunswick 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 23821 at a glance
| ZIP code | 23821 |
|---|---|
| Primary city | Alberta |
| State | Virginia (VA) |
| County | Brunswick FIPS 51025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,983 |
| Coordinates | 36.876000, -77.917940 |
How ZIP+4 works in 23821
The four digits after the hyphen encode a delivery segment inside 23821. 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 23821 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 23821.
| ZIP | City | Distance |
|---|---|---|
| 23938 | Dundas, VA | 5.2 mi |
| 23843 | Dolphin, VA | 6.2 mi |
| 23876 | Rawlings, VA | 7.2 mi |
| 23889 | Warfield, VA | 9.7 mi |
| 23920 | Brodnax, VA | 10.9 mi |
| 23944 | Kenbridge, VA | 12.1 mi |
| 23872 | Mckenney, VA | 12.9 mi |
| 23868 | Lawrenceville, VA | 13.1 mi |
| 23856 | Freeman, VA | 13.4 mi |
| 23824 | Blackstone, VA | 14.8 mi |
| 23970 | South Hill, VA | 17.2 mi |
| 23950 | La Crosse, VA | 17.3 mi |
Questions about 23821
What is the ZIP+4 code for 23821?
23821 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 23821, you need to look up a specific street address to get them.
What city is 23821?
23821 is assigned to Alberta, Virginia, in Brunswick 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.