ZIP Code 61854 — Mansfield, IL
61854 is a standard (street delivery) ZIP code serving Mansfield, Illinois, in Piatt 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 61854 at a glance
| ZIP code | 61854 |
|---|---|
| Primary city | Mansfield |
| State | Illinois (IL) |
| County | Piatt FIPS 17147 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,299 |
| Coordinates | 40.206540, -88.521290 |
How ZIP+4 works in 61854
The four digits after the hyphen encode a delivery segment inside 61854. 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 61854 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 61854.
| ZIP | City | Distance |
|---|---|---|
| 61853 | Mahomet, IL | 5.7 mi |
| 61842 | Farmer City, IL | 7.9 mi |
| 61839 | De Land, IL | 8 mi |
| 61884 | White Heath, IL | 8.2 mi |
| 61724 | Bellflower, IL | 8.8 mi |
| 61875 | Seymour, IL | 8.8 mi |
| 61815 | Bondville, IL | 10.4 mi |
| 61843 | Fisher, IL | 10.6 mi |
| 61822 | Champaign, IL | 12.4 mi |
| 61856 | Monticello, IL | 12.7 mi |
| 61840 | Dewey, IL | 13.1 mi |
| 61845 | Foosland, IL | 13.1 mi |
Questions about 61854
What is the ZIP+4 code for 61854?
61854 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 61854, you need to look up a specific street address to get them.
What city is 61854?
61854 is assigned to Mansfield, Illinois, in Piatt 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.