ZIP Code 61089 — Winslow, IL
61089 is a standard (street delivery) ZIP code serving Winslow, Illinois, in Stephenson 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 61089 at a glance
| ZIP code | 61089 |
|---|---|
| Primary city | Winslow |
| State | Illinois (IL) |
| County | Stephenson FIPS 17177 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 526 |
| Coordinates | 42.473490, -89.823350 |
How ZIP+4 works in 61089
The four digits after the hyphen encode a delivery segment inside 61089. 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 61089 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 61089.
| ZIP | City | Distance |
|---|---|---|
| 61050 | Mcconnell, IL | 5.2 mi |
| 53522 | Browntown, WI | 6 mi |
| 61059 | Nora, IL | 6.1 mi |
| 61048 | Lena, IL | 6.1 mi |
| 53587 | South Wayne, WI | 8.3 mi |
| 61087 | Warren, IL | 8.7 mi |
| 61027 | Eleroy, IL | 10.3 mi |
| 61060 | Orangeville, IL | 10.4 mi |
| 61044 | Kent, IL | 11.3 mi |
| 61013 | Cedarville, IL | 11.7 mi |
| 53599 | Woodford, WI | 12.2 mi |
| 53541 | Gratiot, WI | 12.4 mi |
Questions about 61089
What is the ZIP+4 code for 61089?
61089 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 61089, you need to look up a specific street address to get them.
What city is 61089?
61089 is assigned to Winslow, Illinois, in Stephenson 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.