ZIP Code 21667 — Still Pond, MD
21667 is a standard (street delivery) ZIP code serving Still Pond, Maryland, in Kent 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 21667 at a glance
| ZIP code | 21667 |
|---|---|
| Primary city | Still Pond |
| State | Maryland (MD) |
| County | Kent FIPS 24029 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 291 |
| Coordinates | 39.343770, -76.051880 |
How ZIP+4 works in 21667
The four digits after the hyphen encode a delivery segment inside 21667. 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 21667 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 21667.
| ZIP | City | Distance |
|---|---|---|
| 21610 | Betterton, MD | 1.7 mi |
| 21678 | Worton, MD | 3.7 mi |
| 21645 | Kennedyville, MD | 5.1 mi |
| 21919 | Earleville, MD | 8.2 mi |
| 21930 | Georgetown, MD | 8.8 mi |
| 21005 | Aberdeen Proving Ground, MD | 9 mi |
| 21620 | Chestertown, MD | 9.6 mi |
| 21628 | Crumpton, MD | 10.2 mi |
| 21913 | Cecilton, MD | 10.7 mi |
| 21635 | Galena, MD | 11.4 mi |
| 21130 | Perryman, MD | 11.6 mi |
| 21651 | Millington, MD | 11.9 mi |
Questions about 21667
What is the ZIP+4 code for 21667?
21667 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 21667, you need to look up a specific street address to get them.
What city is 21667?
21667 is assigned to Still Pond, Maryland, in Kent 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.