ZIP Code 60451 — New Lenox, IL
60451 is a standard (street delivery) ZIP code serving New Lenox, Illinois, in Will 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 60451 at a glance
| ZIP code | 60451 |
|---|---|
| Primary city | New Lenox |
| State | Illinois (IL) |
| County | Will FIPS 17197 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 37,361 |
| Coordinates | 41.507170, -87.960880 |
How ZIP+4 works in 60451
The four digits after the hyphen encode a delivery segment inside 60451. 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 60451 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 60451.
| ZIP | City | Distance |
|---|---|---|
| 60448 | Mokena, IL | 4.1 mi |
| 60433 | Joliet, IL | 4.3 mi |
| 60432 | Joliet, IL | 4.7 mi |
| 60423 | Frankfort, IL | 6.6 mi |
| 60491 | Homer Glen, IL | 6.6 mi |
| 60467 | Orland Park, IL | 7.3 mi |
| 60441 | Lockport, IL | 7.5 mi |
| 60487 | Tinley Park, IL | 7.7 mi |
| 60442 | Manhattan, IL | 8 mi |
| 60436 | Joliet, IL | 8.5 mi |
| 60435 | Joliet, IL | 9.1 mi |
| 60403 | Crest Hill, IL | 9.4 mi |
Questions about 60451
What is the ZIP+4 code for 60451?
60451 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 60451, you need to look up a specific street address to get them.
What city is 60451?
60451 is assigned to New Lenox, Illinois, in Will 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.