ZIP Code 61085 — Stockton, IL
61085 is a standard (street delivery) ZIP code serving Stockton, 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 61085 at a glance
| ZIP code | 61085 |
|---|---|
| Primary city | Stockton |
| State | Illinois (IL) |
| County | Jo Daviess FIPS 17085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,149 |
| Coordinates | 42.342680, -90.030770 |
How ZIP+4 works in 61085
The four digits after the hyphen encode a delivery segment inside 61085. 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 61085 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 61085.
| ZIP | City | Distance |
|---|---|---|
| 61044 | Kent, IL | 6.3 mi |
| 61028 | Elizabeth, IL | 7.8 mi |
| 61059 | Nora, IL | 9 mi |
| 61001 | Apple River, IL | 9.4 mi |
| 61087 | Warren, IL | 9.7 mi |
| 61048 | Lena, IL | 10.4 mi |
| 61062 | Pearl City, IL | 11.4 mi |
| 61089 | Winslow, IL | 13.9 mi |
| 61027 | Eleroy, IL | 14.1 mi |
| 61075 | Scales Mound, IL | 14.6 mi |
| 61041 | Hanover, IL | 15.5 mi |
| 53541 | Gratiot, WI | 15.7 mi |
Questions about 61085
What is the ZIP+4 code for 61085?
61085 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 61085, you need to look up a specific street address to get them.
What city is 61085?
61085 is assigned to Stockton, 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.