ZIP Code 61411 — Adair, IL
61411 is a standard (street delivery) ZIP code serving Adair, Illinois, in McDonough 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 61411 at a glance
| ZIP code | 61411 |
|---|---|
| Primary city | Adair |
| State | Illinois (IL) |
| County | McDonough FIPS 17109 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 376 |
| Coordinates | 40.401050, -90.505440 |
How ZIP+4 works in 61411
The four digits after the hyphen encode a delivery segment inside 61411. 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 61411 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 61411.
| ZIP | City | Distance |
|---|---|---|
| 61482 | Table Grove, IL | 5.2 mi |
| 61416 | Bardolph, IL | 7.2 mi |
| 61484 | Vermont, IL | 7.9 mi |
| 61440 | Industry, IL | 8.1 mi |
| 61455 | Macomb, IL | 8.1 mi |
| 61459 | Marietta, IL | 8.6 mi |
| 61422 | Bushnell, IL | 10.4 mi |
| 61441 | Ipava, IL | 11.9 mi |
| 61477 | Smithfield, IL | 11.9 mi |
| 61452 | Littleton, IL | 13.9 mi |
| 61470 | Prairie City, IL | 14.2 mi |
| 61438 | Good Hope, IL | 14.8 mi |
Questions about 61411
What is the ZIP+4 code for 61411?
61411 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 61411, you need to look up a specific street address to get them.
What city is 61411?
61411 is assigned to Adair, Illinois, in McDonough 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.