ZIP Code 60474 — South Wilmington, IL
60474 is a standard (street delivery) ZIP code serving South Wilmington, Illinois, in Grundy 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 60474 at a glance
| ZIP code | 60474 |
|---|---|
| Primary city | South Wilmington |
| State | Illinois (IL) |
| County | Grundy FIPS 17063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 663 |
| Coordinates | 41.176500, -88.269830 |
How ZIP+4 works in 60474
The four digits after the hyphen encode a delivery segment inside 60474. 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 60474 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 60474.
| ZIP | City | Distance |
|---|---|---|
| 60424 | Gardner, IL | 3.2 mi |
| 60407 | Braceville, IL | 3.7 mi |
| 60935 | Essex, IL | 5.3 mi |
| 60961 | Reddick, IL | 5.3 mi |
| 60408 | Braidwood, IL | 6.8 mi |
| 60969 | Union Hill, IL | 7.7 mi |
| 60416 | Coal City, IL | 8.1 mi |
| 60444 | Mazon, IL | 8.3 mi |
| 60917 | Buckingham, IL | 9.8 mi |
| 60420 | Dwight, IL | 10 mi |
| 60920 | Campus, IL | 10.2 mi |
| 60481 | Wilmington, IL | 10.6 mi |
Questions about 60474
What is the ZIP+4 code for 60474?
60474 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 60474, you need to look up a specific street address to get them.
What city is 60474?
60474 is assigned to South Wilmington, Illinois, in Grundy 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.