ZIP Code 07421 — Hewitt, NJ
07421 is a standard (street delivery) ZIP code serving Hewitt, New Jersey, in Passaic 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 07421 at a glance
| ZIP code | 07421 |
|---|---|
| Primary city | Hewitt |
| State | New Jersey (NJ) |
| County | Passaic FIPS 34031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,977 |
| Coordinates | 41.162400, -74.355860 |
How ZIP+4 works in 07421
The four digits after the hyphen encode a delivery segment inside 07421. 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 07421 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 07421.
| ZIP | City | Distance |
|---|---|---|
| 10979 | Sterling Forest, NY | 2.4 mi |
| 10925 | Greenwood Lake, NY | 4.1 mi |
| 07422 | Highland Lakes, NJ | 4.6 mi |
| 07480 | West Milford, NJ | 5.3 mi |
| 07456 | Ringwood, NJ | 5.7 mi |
| 10990 | Warwick, NY | 7.1 mi |
| 07462 | Vernon, NJ | 7.4 mi |
| 10987 | Tuxedo Park, NY | 7.6 mi |
| 07460 | Stockholm, NJ | 7.7 mi |
| 07465 | Wanaque, NJ | 8.3 mi |
| 07418 | Glenwood, NJ | 8.6 mi |
| 10974 | Sloatsburg, NY | 8.6 mi |
Questions about 07421
What is the ZIP+4 code for 07421?
07421 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 07421, you need to look up a specific street address to get them.
What city is 07421?
07421 is assigned to Hewitt, New Jersey, in Passaic 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.