ZIP Code 60444 — Mazon, IL
60444 is a standard (street delivery) ZIP code serving Mazon, 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 60444 at a glance
| ZIP code | 60444 |
|---|---|
| Primary city | Mazon |
| State | Illinois (IL) |
| County | Grundy FIPS 17063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,901 |
| Coordinates | 41.242460, -88.404030 |
How ZIP+4 works in 60444
The four digits after the hyphen encode a delivery segment inside 60444. 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 60444 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 60444.
| ZIP | City | Distance |
|---|---|---|
| 60479 | Verona, IL | 6.1 mi |
| 60424 | Gardner, IL | 6.5 mi |
| 60416 | Coal City, IL | 7.2 mi |
| 60407 | Braceville, IL | 7.3 mi |
| 60474 | South Wilmington, IL | 8.3 mi |
| 60450 | Morris, IL | 8.9 mi |
| 60437 | Kinsman, IL | 9.4 mi |
| 60408 | Braidwood, IL | 9.8 mi |
| 60420 | Dwight, IL | 10.7 mi |
| 61360 | Seneca, IL | 12.2 mi |
| 60961 | Reddick, IL | 13 mi |
| 60935 | Essex, IL | 13.2 mi |
Questions about 60444
What is the ZIP+4 code for 60444?
60444 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 60444, you need to look up a specific street address to get them.
What city is 60444?
60444 is assigned to Mazon, 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.