ZIP Code 07940 — Madison, NJ
07940 is a standard (street delivery) ZIP code serving Madison, 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 07940 at a glance
| ZIP code | 07940 |
|---|---|
| Primary city | Madison |
| State | New Jersey (NJ) |
| County | Morris FIPS 34027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 17,610 |
| Coordinates | 40.760060, -74.418890 |
How ZIP+4 works in 07940
The four digits after the hyphen encode a delivery segment inside 07940. 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 07940 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 07940.
| ZIP | City | Distance |
|---|---|---|
| 07961 | Convent Station, NJ | 1.7 mi |
| 07932 | Florham Park, NJ | 1.8 mi |
| 07935 | Green Village, NJ | 2.4 mi |
| 07928 | Chatham, NJ | 2.4 mi |
| 07976 | New Vernon, NJ | 3.8 mi |
| 07901 | Summit, NJ | 4.2 mi |
| 07974 | New Providence, NJ | 4.4 mi |
| 07981 | Whippany, NJ | 4.4 mi |
| 07960 | Morristown, NJ | 4.5 mi |
| 07927 | Cedar Knolls, NJ | 4.6 mi |
| 07078 | Short Hills, NJ | 4.9 mi |
| 07039 | Livingston, NJ | 5 mi |
Questions about 07940
What is the ZIP+4 code for 07940?
07940 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 07940, you need to look up a specific street address to get them.
What city is 07940?
07940 is assigned to Madison, 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.