ZIP Code 54664 — Viola, WI
54664 is a standard (street delivery) ZIP code serving Viola, Wisconsin, in Richland 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 54664 at a glance
| ZIP code | 54664 |
|---|---|
| Primary city | Viola |
| State | Wisconsin (WI) |
| County | Richland FIPS 55103 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,571 |
| Coordinates | 43.499120, -90.640760 |
How ZIP+4 works in 54664
The four digits after the hyphen encode a delivery segment inside 54664. 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 54664 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 54664.
| ZIP | City | Distance |
|---|---|---|
| 54652 | Readstown, WI | 6.9 mi |
| 54639 | La Farge, WI | 7.4 mi |
| 54655 | Soldiers Grove, WI | 10.4 mi |
| 54634 | Hillsboro, WI | 12.7 mi |
| 53581 | Richland Center, WI | 14.1 mi |
| 54665 | Viroqua, WI | 14.2 mi |
| 54651 | Ontario, WI | 15.9 mi |
| 54667 | Westby, WI | 16 mi |
| 54631 | Gays Mills, WI | 17.5 mi |
| 53518 | Blue River, WI | 17.7 mi |
| 54645 | Mount Sterling, WI | 19 mi |
| 54619 | Cashton, WI | 19 mi |
Questions about 54664
What is the ZIP+4 code for 54664?
54664 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 54664, you need to look up a specific street address to get them.
What city is 54664?
54664 is assigned to Viola, Wisconsin, in Richland 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.