ZIP Code 60537 — Millington, IL
60537 is a standard (street delivery) ZIP code serving Millington, Illinois, in LaSalle 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 60537 at a glance
| ZIP code | 60537 |
|---|---|
| Primary city | Millington |
| State | Illinois (IL) |
| County | LaSalle FIPS 17099 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 726 |
| Coordinates | 41.561580, -88.602460 |
How ZIP+4 works in 60537
The four digits after the hyphen encode a delivery segment inside 60537. 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 60537 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 60537.
| ZIP | City | Distance |
|---|---|---|
| 60536 | Millbrook, IL | 3.6 mi |
| 60541 | Newark, IL | 4.9 mi |
| 60551 | Sheridan, IL | 5.2 mi |
| 60548 | Sandwich, IL | 6.2 mi |
| 60552 | Somonauk, IL | 8.6 mi |
| 60549 | Serena, IL | 8.7 mi |
| 60545 | Plano, IL | 8.7 mi |
| 60560 | Yorkville, IL | 9.5 mi |
| 60531 | Leland, IL | 10.2 mi |
| 60557 | Wedron, IL | 11.7 mi |
| 60512 | Bristol, IL | 12.8 mi |
| 60511 | Big Rock, IL | 13.7 mi |
Questions about 60537
What is the ZIP+4 code for 60537?
60537 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 60537, you need to look up a specific street address to get them.
What city is 60537?
60537 is assigned to Millington, Illinois, in LaSalle 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.