ZIP Code 21766 — Little Orleans, MD
21766 is a standard (street delivery) ZIP code serving Little Orleans, Maryland, in Allegany 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 21766 at a glance
| ZIP code | 21766 |
|---|---|
| Primary city | Little Orleans |
| State | Maryland (MD) |
| County | Allegany FIPS 24001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 854 |
| Coordinates | 39.659280, -78.398590 |
How ZIP+4 works in 21766
The four digits after the hyphen encode a delivery segment inside 21766. 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 21766 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 21766.
| ZIP | City | Distance |
|---|---|---|
| 17211 | Artemas, PA | 6.4 mi |
| 25422 | Great Cacapon, WV | 7.3 mi |
| 21530 | Flintstone, MD | 7.9 mi |
| 21555 | Oldtown, MD | 9.7 mi |
| 21750 | Hancock, MD | 10 mi |
| 15535 | Clearville, PA | 11.8 mi |
| 25411 | Berkeley Springs, WV | 11.9 mi |
| 17267 | Warfordsburg, PA | 13.1 mi |
| 25434 | Paw Paw, WV | 14.2 mi |
| 25431 | Levels, WV | 15.1 mi |
| 26722 | Green Spring, WV | 16.8 mi |
| 25444 | Slanesville, WV | 16.8 mi |
Questions about 21766
What is the ZIP+4 code for 21766?
21766 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 21766, you need to look up a specific street address to get them.
What city is 21766?
21766 is assigned to Little Orleans, Maryland, in Allegany 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.