ZIP Code 61377 — Wenona, IL
61377 is a standard (street delivery) ZIP code serving Wenona, Illinois, in LaSalle 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 61377 at a glance
| ZIP code | 61377 |
|---|---|
| Primary city | Wenona |
| State | Illinois (IL) |
| County | LaSalle FIPS 17099 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,441 |
| Coordinates | 41.058470, -89.044440 |
How ZIP+4 works in 61377
The four digits after the hyphen encode a delivery segment inside 61377. 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 61377 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 61377.
| ZIP | City | Distance |
|---|---|---|
| 61358 | Rutland, IL | 5.3 mi |
| 61334 | Lostant, IL | 6.8 mi |
| 61321 | Dana, IL | 7.2 mi |
| 61369 | Toluca, IL | 7.7 mi |
| 61333 | Long Point, IL | 9.4 mi |
| 61332 | Leonore, IL | 9.5 mi |
| 61336 | Magnolia, IL | 9.6 mi |
| 61311 | Ancona, IL | 9.6 mi |
| 61370 | Tonica, IL | 10.4 mi |
| 61375 | Varna, IL | 10.7 mi |
| 61364 | Streator, IL | 11.2 mi |
| 61541 | La Rose, IL | 11.3 mi |
Questions about 61377
What is the ZIP+4 code for 61377?
61377 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 61377, you need to look up a specific street address to get them.
What city is 61377?
61377 is assigned to Wenona, Illinois, in LaSalle 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.