ZIP Code 07457 — Riverdale, NJ
07457 is a standard (street delivery) ZIP code serving Riverdale, 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 07457 at a glance
| ZIP code | 07457 |
|---|---|
| Primary city | Riverdale |
| State | New Jersey (NJ) |
| County | Morris FIPS 34027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,112 |
| Coordinates | 40.992120, -74.312500 |
How ZIP+4 works in 07457
The four digits after the hyphen encode a delivery segment inside 07457. 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 07457 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 07457.
| ZIP | City | Distance |
|---|---|---|
| 07442 | Pompton Lakes, NJ | 1.6 mi |
| 07444 | Pompton Plains, NJ | 1.7 mi |
| 07403 | Bloomingdale, NJ | 2.2 mi |
| 07420 | Haskell, NJ | 2.6 mi |
| 07440 | Pequannock, NJ | 3.3 mi |
| 07405 | Butler, NJ | 3.7 mi |
| 07465 | Wanaque, NJ | 4.1 mi |
| 07035 | Lincoln Park, NJ | 4.6 mi |
| 07436 | Oakland, NJ | 4.6 mi |
| 07470 | Wayne, NJ | 4.6 mi |
| 07082 | Towaco, NJ | 4.8 mi |
| 07417 | Franklin Lakes, NJ | 5.5 mi |
Questions about 07457
What is the ZIP+4 code for 07457?
07457 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 07457, you need to look up a specific street address to get them.
What city is 07457?
07457 is assigned to Riverdale, 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.