ZIP Code 60135 — Genoa, IL
60135 is a standard (street delivery) ZIP code serving Genoa, Illinois, in DeKalb 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 60135 at a glance
| ZIP code | 60135 |
|---|---|
| Primary city | Genoa |
| State | Illinois (IL) |
| County | DeKalb FIPS 17037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 7,274 |
| Coordinates | 42.112650, -88.678670 |
How ZIP+4 works in 60135
The four digits after the hyphen encode a delivery segment inside 60135. 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 60135 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 60135.
| ZIP | City | Distance |
|---|---|---|
| 60145 | Kingston, IL | 5.2 mi |
| 60178 | Sycamore, IL | 7.3 mi |
| 60109 | Burlington, IL | 7.6 mi |
| 60140 | Hampshire, IL | 9 mi |
| 60152 | Marengo, IL | 9.1 mi |
| 60146 | Kirkland, IL | 10.3 mi |
| 60111 | Clare, IL | 10.7 mi |
| 61038 | Garden Prairie, IL | 10.8 mi |
| 60180 | Union, IL | 11.1 mi |
| 61008 | Belvidere, IL | 12.3 mi |
| 60142 | Huntley, IL | 12.7 mi |
| 60112 | Cortland, IL | 13 mi |
Questions about 60135
What is the ZIP+4 code for 60135?
60135 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 60135, you need to look up a specific street address to get them.
What city is 60135?
60135 is assigned to Genoa, Illinois, in DeKalb 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.