ZIP Code 62478 — West York, IL
62478 is a standard (street delivery) ZIP code serving West York, Illinois, in Clark 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 62478 at a glance
| ZIP code | 62478 |
|---|---|
| Primary city | West York |
| State | Illinois (IL) |
| County | Clark FIPS 17023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 333 |
| Coordinates | 39.178740, -87.743670 |
How ZIP+4 works in 62478
The four digits after the hyphen encode a delivery segment inside 62478. 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 62478 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 62478.
| ZIP | City | Distance |
|---|---|---|
| 62433 | Hutsonville, IL | 5 mi |
| 62413 | Annapolis, IL | 5.8 mi |
| 62477 | West Union, IL | 5.9 mi |
| 47849 | Fairbanks, IN | 9.8 mi |
| 62442 | Martinsville, IL | 11 mi |
| 47861 | Merom, IN | 12.3 mi |
| 62454 | Robinson, IL | 12.5 mi |
| 62464 | Stoy, IL | 13.2 mi |
| 62451 | Palestine, IL | 14.7 mi |
| 47869 | Prairie Creek, IN | 14.8 mi |
| 62441 | Marshall, IL | 15 mi |
| 62449 | Oblong, IL | 15 mi |
Questions about 62478
What is the ZIP+4 code for 62478?
62478 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 62478, you need to look up a specific street address to get them.
What city is 62478?
62478 is assigned to West York, Illinois, in Clark 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.