ZIP Code 61911 — Arthur, IL
61911 is a standard (street delivery) ZIP code serving Arthur, Illinois, in Moultrie 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 61911 at a glance
| ZIP code | 61911 |
|---|---|
| Primary city | Arthur |
| State | Illinois (IL) |
| County | Moultrie FIPS 17139 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,508 |
| Coordinates | 39.704520, -88.470680 |
How ZIP+4 works in 61911
The four digits after the hyphen encode a delivery segment inside 61911. 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 61911 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 61911.
| ZIP | City | Distance |
|---|---|---|
| 61913 | Atwood, IL | 8.4 mi |
| 61910 | Arcola, IL | 9.3 mi |
| 61931 | Humboldt, IL | 9.8 mi |
| 61951 | Sullivan, IL | 9.9 mi |
| 61937 | Lovington, IL | 10.1 mi |
| 61929 | Hammond, IL | 11.5 mi |
| 61953 | Tuscola, IL | 11.6 mi |
| 61813 | Bement, IL | 14.9 mi |
| 61936 | La Place, IL | 15.2 mi |
| 61938 | Mattoon, IL | 16.3 mi |
| 61914 | Bethany, IL | 16.5 mi |
| 61872 | Sadorus, IL | 16.7 mi |
Questions about 61911
What is the ZIP+4 code for 61911?
61911 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 61911, you need to look up a specific street address to get them.
What city is 61911?
61911 is assigned to Arthur, Illinois, in Moultrie 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.