ZIP Code 61723 — Atlanta, IL
61723 is a standard (street delivery) ZIP code serving Atlanta, Illinois, in Logan 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 61723 at a glance
| ZIP code | 61723 |
|---|---|
| Primary city | Atlanta |
| State | Illinois (IL) |
| County | Logan FIPS 17107 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,005 |
| Coordinates | 40.261390, -89.267030 |
How ZIP+4 works in 61723
The four digits after the hyphen encode a delivery segment inside 61723. 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 61723 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 61723.
| ZIP | City | Distance |
|---|---|---|
| 61751 | Lawndale, IL | 3.7 mi |
| 61721 | Armington, IL | 7 mi |
| 61754 | Mclean, IL | 7.4 mi |
| 62512 | Beason, IL | 8.6 mi |
| 61778 | Waynesville, IL | 9.6 mi |
| 62656 | Lincoln, IL | 9.9 mi |
| 62643 | Hartsburg, IL | 10.1 mi |
| 62635 | Emden, IL | 10.7 mi |
| 61774 | Stanford, IL | 12.1 mi |
| 61759 | Minier, IL | 12.3 mi |
| 61772 | Shirley, IL | 13.7 mi |
| 61747 | Hopedale, IL | 13.9 mi |
Questions about 61723
What is the ZIP+4 code for 61723?
61723 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 61723, you need to look up a specific street address to get them.
What city is 61723?
61723 is assigned to Atlanta, Illinois, in Logan 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.