ZIP Code 61455 — Macomb, IL
61455 is a standard (street delivery) ZIP code serving Macomb, 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 61455 at a glance
| ZIP code | 61455 |
|---|---|
| Primary city | Macomb |
| State | Illinois (IL) |
| County | McDonough FIPS 17109 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 17,317 |
| Coordinates | 40.440470, -90.651150 |
How ZIP+4 works in 61455
The four digits after the hyphen encode a delivery segment inside 61455. 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 61455 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 61455.
| ZIP | City | Distance |
|---|---|---|
| 61416 | Bardolph, IL | 6 mi |
| 61411 | Adair, IL | 8.1 mi |
| 62326 | Colchester, IL | 8.7 mi |
| 61440 | Industry, IL | 9.6 mi |
| 61422 | Bushnell, IL | 9.9 mi |
| 61438 | Good Hope, IL | 10 mi |
| 61475 | Sciota, IL | 12 mi |
| 61459 | Marietta, IL | 13.2 mi |
| 61482 | Table Grove, IL | 13.2 mi |
| 61420 | Blandinsville, IL | 13.6 mi |
| 61470 | Prairie City, IL | 13.7 mi |
| 62374 | Tennessee, IL | 13.8 mi |
Questions about 61455
What is the ZIP+4 code for 61455?
61455 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 61455, you need to look up a specific street address to get them.
What city is 61455?
61455 is assigned to Macomb, 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.