ZIP Code 61078 — Shannon, IL
61078 is a standard (street delivery) ZIP code serving Shannon, Illinois, in Carroll 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 61078 at a glance
| ZIP code | 61078 |
|---|---|
| Primary city | Shannon |
| State | Illinois (IL) |
| County | Carroll FIPS 17015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,459 |
| Coordinates | 42.167290, -89.730620 |
How ZIP+4 works in 61078
The four digits after the hyphen encode a delivery segment inside 61078. 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 61078 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 61078.
| ZIP | City | Distance |
|---|---|---|
| 61046 | Lanark, IL | 6.1 mi |
| 61007 | Baileyville, IL | 7.5 mi |
| 61030 | Forreston, IL | 8.1 mi |
| 61062 | Pearl City, IL | 8.2 mi |
| 61032 | Freeport, IL | 11.3 mi |
| 61027 | Eleroy, IL | 11.5 mi |
| 61051 | Milledgeville, IL | 12.8 mi |
| 61053 | Mount Carroll, IL | 13.4 mi |
| 61039 | German Valley, IL | 13.7 mi |
| 61044 | Kent, IL | 14.1 mi |
| 61064 | Polo, IL | 14.3 mi |
| 61013 | Cedarville, IL | 15.2 mi |
Questions about 61078
What is the ZIP+4 code for 61078?
61078 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 61078, you need to look up a specific street address to get them.
What city is 61078?
61078 is assigned to Shannon, Illinois, in Carroll 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.