ZIP Code 60185 — West Chicago, IL
60185 is a standard (street delivery) ZIP code serving West Chicago, Illinois, in DuPage 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 60185 at a glance
| ZIP code | 60185 |
|---|---|
| Primary city | West Chicago |
| State | Illinois (IL) |
| County | DuPage FIPS 17043 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 33,703 |
| Coordinates | 41.893080, -88.214980 |
How ZIP+4 works in 60185
The four digits after the hyphen encode a delivery segment inside 60185. 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 60185 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 60185.
| ZIP | City | Distance |
|---|---|---|
| 60190 | Winfield, IL | 3.3 mi |
| 60184 | Wayne, IL | 4.5 mi |
| 60188 | Carol Stream, IL | 4.7 mi |
| 60174 | Saint Charles, IL | 4.9 mi |
| 60555 | Warrenville, IL | 5 mi |
| 60187 | Wheaton, IL | 5.5 mi |
| 60103 | Bartlett, IL | 5.9 mi |
| 60510 | Batavia, IL | 6.1 mi |
| 60189 | Wheaton, IL | 6.1 mi |
| 60134 | Geneva, IL | 6.6 mi |
| 60133 | Hanover Park, IL | 6.9 mi |
| 60563 | Naperville, IL | 6.9 mi |
Questions about 60185
What is the ZIP+4 code for 60185?
60185 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 60185, you need to look up a specific street address to get them.
What city is 60185?
60185 is assigned to West Chicago, Illinois, in DuPage 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.