ZIP Code 07843 — Hopatcong, NJ
07843 is a standard (street delivery) ZIP code serving Hopatcong, New Jersey, 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 07843 at a glance
| ZIP code | 07843 |
|---|---|
| Primary city | Hopatcong |
| State | New Jersey (NJ) |
| County | Sussex FIPS 34037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 11,098 |
| Coordinates | 40.939890, -74.659280 |
How ZIP+4 works in 07843
The four digits after the hyphen encode a delivery segment inside 07843. 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 07843 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 07843.
| ZIP | City | Distance |
|---|---|---|
| 07856 | Mount Arlington, NJ | 2 mi |
| 07850 | Landing, NJ | 2.3 mi |
| 07874 | Stanhope, NJ | 2.8 mi |
| 07849 | Lake Hopatcong, NJ | 3.2 mi |
| 07857 | Netcong, NJ | 3.6 mi |
| 07852 | Ledgewood, NJ | 3.9 mi |
| 07847 | Kenvil, NJ | 4.2 mi |
| 07885 | Wharton, NJ | 4.3 mi |
| 07821 | Andover, NJ | 4.9 mi |
| 07803 | Mine Hill, NJ | 5.3 mi |
| 07801 | Dover, NJ | 5.9 mi |
| 07876 | Succasunna, NJ | 6 mi |
Questions about 07843
What is the ZIP+4 code for 07843?
07843 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 07843, you need to look up a specific street address to get them.
What city is 07843?
07843 is assigned to Hopatcong, New Jersey, 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.