ZIP Code 07737 — Leonardo, NJ
07737 is a standard (street delivery) ZIP code serving Leonardo, New Jersey, in Monmouth 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 07737 at a glance
| ZIP code | 07737 |
|---|---|
| Primary city | Leonardo |
| State | New Jersey (NJ) |
| County | Monmouth FIPS 34025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,945 |
| Coordinates | 40.409530, -74.064440 |
How ZIP+4 works in 07737
The four digits after the hyphen encode a delivery segment inside 07737. 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 07737 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 07737.
| ZIP | City | Distance |
|---|---|---|
| 07718 | Belford, NJ | 1.3 mi |
| 07716 | Atlantic Highlands, NJ | 1.6 mi |
| 07758 | Port Monmouth, NJ | 2.5 mi |
| 07748 | Middletown, NJ | 2.9 mi |
| 07701 | Red Bank, NJ | 3.5 mi |
| 07704 | Fair Haven, NJ | 3.6 mi |
| 07732 | Highlands, NJ | 4.1 mi |
| 07760 | Rumson, NJ | 4.1 mi |
| 07734 | Keansburg, NJ | 4.4 mi |
| 07739 | Little Silver, NJ | 5.3 mi |
| 07702 | Shrewsbury, NJ | 5.8 mi |
| 07738 | Lincroft, NJ | 5.9 mi |
Questions about 07737
What is the ZIP+4 code for 07737?
07737 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 07737, you need to look up a specific street address to get them.
What city is 07737?
07737 is assigned to Leonardo, New Jersey, in Monmouth 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.