ZIP Code 60631 — Chicago, IL
60631 is a standard (street delivery) ZIP code serving Chicago, Illinois, in Cook 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 60631 at a glance
| ZIP code | 60631 |
|---|---|
| Primary city | Chicago |
| State | Illinois (IL) |
| County | Cook FIPS 17031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 30,924 |
| Coordinates | 41.994730, -87.813100 |
How ZIP+4 works in 60631
The four digits after the hyphen encode a delivery segment inside 60631. 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 60631 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.
Other ZIP codes in Chicago
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 60631.
| ZIP | City | Distance |
|---|---|---|
| 60656 | Chicago, IL | 1.6 mi |
| 60068 | Park Ridge, IL | 2 mi |
| 60706 | Harwood Heights, IL | 2.1 mi |
| 60714 | Niles, IL | 2.3 mi |
| 60646 | Chicago, IL | 2.7 mi |
| 60630 | Chicago, IL | 3.2 mi |
| 60634 | Chicago, IL | 3.4 mi |
| 60053 | Morton Grove, IL | 3.5 mi |
| 60176 | Schiller Park, IL | 3.8 mi |
| 60077 | Skokie, IL | 4.1 mi |
| 60712 | Lincolnwood, IL | 4.2 mi |
| 60018 | Des Plaines, IL | 4.4 mi |
Questions about 60631
What is the ZIP+4 code for 60631?
60631 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 60631, you need to look up a specific street address to get them.
What city is 60631?
60631 is assigned to Chicago, Illinois, in Cook 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.