ZIP Code 19703 — Claymont, DE
19703 is a standard (street delivery) ZIP code serving Claymont, Delaware, in New Castle 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 19703 at a glance
| ZIP code | 19703 |
|---|---|
| Primary city | Claymont |
| State | Delaware (DE) |
| County | New Castle FIPS 10003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 15,460 |
| Coordinates | 39.804300, -75.457940 |
How ZIP+4 works in 19703
The four digits after the hyphen encode a delivery segment inside 19703. 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 19703 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 19703.
| ZIP | City | Distance |
|---|---|---|
| 19061 | Marcus Hook, PA | 2.1 mi |
| 19810 | Wilmington, DE | 2.7 mi |
| 19060 | Garnet Valley, PA | 3.7 mi |
| 19809 | Wilmington, DE | 4 mi |
| 19014 | Aston, PA | 4.3 mi |
| 19803 | Wilmington, DE | 4.5 mi |
| 19802 | Wilmington, DE | 5 mi |
| 08067 | Pedricktown, NJ | 5.1 mi |
| 08014 | Bridgeport, NJ | 5.1 mi |
| 19013 | Chester, PA | 5.2 mi |
| 19015 | Brookhaven, PA | 5.6 mi |
| 19017 | Chester Heights, PA | 6 mi |
Questions about 19703
What is the ZIP+4 code for 19703?
19703 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 19703, you need to look up a specific street address to get them.
What city is 19703?
19703 is assigned to Claymont, Delaware, in New Castle 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.