ZIP Code 08323 — Greenwich, NJ
08323 is a standard (street delivery) ZIP code serving Greenwich, New Jersey, in Cumberland 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 08323 at a glance
| ZIP code | 08323 |
|---|---|
| Primary city | Greenwich |
| State | New Jersey (NJ) |
| County | Cumberland FIPS 34011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 731 |
| Coordinates | 39.395570, -75.366050 |
How ZIP+4 works in 08323
The four digits after the hyphen encode a delivery segment inside 08323. 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 08323 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 08323.
| ZIP | City | Distance |
|---|---|---|
| 08353 | Shiloh, NJ | 5.7 mi |
| 08302 | Bridgeton, NJ | 6.3 mi |
| 08038 | Hancocks Bridge, NJ | 8.5 mi |
| 08311 | Cedarville, NJ | 9.7 mi |
| 08072 | Quinton, NJ | 10.6 mi |
| 08079 | Salem, NJ | 10.8 mi |
| 08001 | Alloway, NJ | 11 mi |
| 08320 | Fairton, NJ | 11 mi |
| 19977 | Smyrna, DE | 12 mi |
| 08345 | Newport, NJ | 13.8 mi |
| 08352 | Rosenhayn, NJ | 13.9 mi |
| 19731 | Port Penn, DE | 14.6 mi |
Questions about 08323
What is the ZIP+4 code for 08323?
08323 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 08323, you need to look up a specific street address to get them.
What city is 08323?
08323 is assigned to Greenwich, New Jersey, in Cumberland 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.