ZIP Code 60955 — Onarga, IL
60955 is a standard (street delivery) ZIP code serving Onarga, Illinois, in Iroquois 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 60955 at a glance
| ZIP code | 60955 |
|---|---|
| Primary city | Onarga |
| State | Illinois (IL) |
| County | Iroquois FIPS 17075 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,953 |
| Coordinates | 40.700400, -87.980080 |
How ZIP+4 works in 60955
The four digits after the hyphen encode a delivery segment inside 60955. 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 60955 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 60955.
| ZIP | City | Distance |
|---|---|---|
| 60938 | Gilman, IL | 5.1 mi |
| 60928 | Crescent City, IL | 7.5 mi |
| 60968 | Thawville, IL | 7.6 mi |
| 60918 | Buckley, IL | 7.6 mi |
| 60930 | Danforth, IL | 9.2 mi |
| 60924 | Cissna Park, IL | 11 mi |
| 60962 | Roberts, IL | 12 mi |
| 60911 | Ashkum, IL | 12.3 mi |
| 60959 | Piper City, IL | 12.3 mi |
| 60926 | Claytonville, IL | 12.6 mi |
| 60974 | Woodland, IL | 12.8 mi |
| 60948 | Loda, IL | 13.2 mi |
Questions about 60955
What is the ZIP+4 code for 60955?
60955 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 60955, you need to look up a specific street address to get them.
What city is 60955?
60955 is assigned to Onarga, Illinois, in Iroquois 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.