ZIP Code 54420 — Chili, WI
54420 is a standard (street delivery) ZIP code serving Chili, Wisconsin, 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 54420 at a glance
| ZIP code | 54420 |
|---|---|
| Primary city | Chili |
| State | Wisconsin (WI) |
| County | Clark FIPS 55019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,330 |
| Coordinates | 44.610430, -90.350360 |
How ZIP+4 works in 54420
The four digits after the hyphen encode a delivery segment inside 54420. 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 54420 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 54420.
| ZIP | City | Distance |
|---|---|---|
| 54436 | Granton, WI | 6.2 mi |
| 54449 | Marshfield, WI | 7.8 mi |
| 54479 | Spencer, WI | 10.2 mi |
| 54446 | Loyal, WI | 11.5 mi |
| 54441 | Hewitt, WI | 12.2 mi |
| 54456 | Neillsville, WI | 14.8 mi |
| 54466 | Pittsville, WI | 15.6 mi |
| 54488 | Unity, WI | 16.1 mi |
| 54410 | Arpin, WI | 16.5 mi |
| 54437 | Greenwood, WI | 18.3 mi |
| 54412 | Auburndale, WI | 18.5 mi |
| 54484 | Stratford, WI | 18.6 mi |
Questions about 54420
What is the ZIP+4 code for 54420?
54420 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 54420, you need to look up a specific street address to get them.
What city is 54420?
54420 is assigned to Chili, Wisconsin, 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.