ZIP Code 60621 — Chicago, IL
60621 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 60621 at a glance
| ZIP code | 60621 |
|---|---|
| Primary city | Chicago |
| State | Illinois (IL) |
| County | Cook FIPS 17031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 28,301 |
| Coordinates | 41.776240, -87.639550 |
How ZIP+4 works in 60621
The four digits after the hyphen encode a delivery segment inside 60621. 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 60621 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 60621.
| ZIP | City | Distance |
|---|---|---|
| 60636 | Chicago, IL | 1.5 mi |
| 60637 | Chicago, IL | 1.9 mi |
| 60620 | Chicago, IL | 2.5 mi |
| 60615 | Chicago, IL | 2.6 mi |
| 60609 | Chicago, IL | 2.6 mi |
| 60619 | Chicago, IL | 2.9 mi |
| 60653 | Chicago, IL | 3.3 mi |
| 60629 | Chicago, IL | 3.7 mi |
| 60649 | Chicago, IL | 4.1 mi |
| 60652 | Chicago, IL | 4.3 mi |
| 60632 | Chicago, IL | 4.5 mi |
| 60616 | Chicago, IL | 4.8 mi |
Questions about 60621
What is the ZIP+4 code for 60621?
60621 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 60621, you need to look up a specific street address to get them.
What city is 60621?
60621 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.