ZIP Code 19940 — Delmar, DE
19940 is a standard (street delivery) ZIP code serving Delmar, Delaware, in Sussex 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 19940 at a glance
| ZIP code | 19940 |
|---|---|
| Primary city | Delmar |
| State | Delaware (DE) |
| County | Sussex FIPS 10005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 7,540 |
| Coordinates | 38.477230, -75.568280 |
How ZIP+4 works in 19940
The four digits after the hyphen encode a delivery segment inside 19940. 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 19940 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 19940.
| ZIP | City | Distance |
|---|---|---|
| 21875 | Delmar, MD | 2.8 mi |
| 19956 | Laurel, DE | 5 mi |
| 19931 | Bethel, DE | 6.7 mi |
| 21801 | Salisbury, MD | 7.7 mi |
| 21849 | Parsonsburg, MD | 9.4 mi |
| 21861 | Sharptown, MD | 9.5 mi |
| 21830 | Hebron, MD | 10.1 mi |
| 21837 | Mardela Springs, MD | 10.8 mi |
| 19973 | Seaford, DE | 11.2 mi |
| 21826 | Fruitland, MD | 11.2 mi |
| 21804 | Salisbury, MD | 11.2 mi |
| 21850 | Pittsville, MD | 12.1 mi |
Questions about 19940
What is the ZIP+4 code for 19940?
19940 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 19940, you need to look up a specific street address to get them.
What city is 19940?
19940 is assigned to Delmar, Delaware, in Sussex 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.