ZIP Code 07023 — Fanwood, NJ
07023 is a standard (street delivery) ZIP code serving Fanwood, New Jersey, in Union 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 07023 at a glance
| ZIP code | 07023 |
|---|---|
| Primary city | Fanwood |
| State | New Jersey (NJ) |
| County | Union FIPS 34039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 7,799 |
| Coordinates | 40.641710, -74.385750 |
How ZIP+4 works in 07023
The four digits after the hyphen encode a delivery segment inside 07023. 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 07023 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 07023.
| ZIP | City | Distance |
|---|---|---|
| 07076 | Scotch Plains, NJ | 0.9 mi |
| 07062 | Plainfield, NJ | 1.2 mi |
| 07090 | Westfield, NJ | 2.3 mi |
| 07060 | Plainfield, NJ | 2.6 mi |
| 07069 | Watchung, NJ | 2.8 mi |
| 07092 | Mountainside, NJ | 3 mi |
| 07922 | Berkeley Heights, NJ | 3.2 mi |
| 07027 | Garwood, NJ | 3.3 mi |
| 07974 | New Providence, NJ | 3.9 mi |
| 07063 | Plainfield, NJ | 4 mi |
| 07066 | Clark, NJ | 4.1 mi |
| 07016 | Cranford, NJ | 4.4 mi |
Questions about 07023
What is the ZIP+4 code for 07023?
07023 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 07023, you need to look up a specific street address to get them.
What city is 07023?
07023 is assigned to Fanwood, New Jersey, in Union 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.