ZIP Code 61087 — Warren, IL
61087 is a standard (street delivery) ZIP code serving Warren, Illinois, in Jo Daviess 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 61087 at a glance
| ZIP code | 61087 |
|---|---|
| Primary city | Warren |
| State | Illinois (IL) |
| County | Jo Daviess FIPS 17085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,588 |
| Coordinates | 42.480460, -89.993510 |
How ZIP+4 works in 61087
The four digits after the hyphen encode a delivery segment inside 61087. 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 61087 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 61087.
| ZIP | City | Distance |
|---|---|---|
| 61059 | Nora, IL | 3.2 mi |
| 53541 | Gratiot, WI | 6.4 mi |
| 61001 | Apple River, IL | 6.7 mi |
| 53587 | South Wayne, WI | 8.1 mi |
| 61089 | Winslow, IL | 8.7 mi |
| 61085 | Stockton, IL | 9.7 mi |
| 61048 | Lena, IL | 10.4 mi |
| 53522 | Browntown, WI | 11.6 mi |
| 61044 | Kent, IL | 11.6 mi |
| 53599 | Woodford, WI | 13.4 mi |
| 53586 | Shullsburg, WI | 13.5 mi |
| 61050 | Mcconnell, IL | 13.6 mi |
Questions about 61087
What is the ZIP+4 code for 61087?
61087 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 61087, you need to look up a specific street address to get them.
What city is 61087?
61087 is assigned to Warren, Illinois, in Jo Daviess 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.