ZIP Code 07857 — Netcong, NJ
07857 is a standard (street delivery) ZIP code serving Netcong, New Jersey, in Morris 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 07857 at a glance
| ZIP code | 07857 |
|---|---|
| Primary city | Netcong |
| State | New Jersey (NJ) |
| County | Morris FIPS 34027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,728 |
| Coordinates | 40.897330, -74.699980 |
How ZIP+4 works in 07857
The four digits after the hyphen encode a delivery segment inside 07857. 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 07857 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 07857.
| ZIP | City | Distance |
|---|---|---|
| 07852 | Ledgewood, NJ | 2 mi |
| 07850 | Landing, NJ | 2.1 mi |
| 07874 | Stanhope, NJ | 2.2 mi |
| 07828 | Budd Lake, NJ | 2.8 mi |
| 07836 | Flanders, NJ | 3.4 mi |
| 07843 | Hopatcong, NJ | 3.6 mi |
| 07876 | Succasunna, NJ | 3.8 mi |
| 07856 | Mount Arlington, NJ | 3.8 mi |
| 07847 | Kenvil, NJ | 4.1 mi |
| 07821 | Andover, NJ | 5.3 mi |
| 07803 | Mine Hill, NJ | 5.4 mi |
| 07820 | Allamuchy, NJ | 5.9 mi |
Questions about 07857
What is the ZIP+4 code for 07857?
07857 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 07857, you need to look up a specific street address to get them.
What city is 07857?
07857 is assigned to Netcong, New Jersey, in Morris 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.