ZIP Code 53590 — Sun Prairie, WI
53590 is a standard (street delivery) ZIP code serving Sun Prairie, Wisconsin, in Dane 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 53590 at a glance
| ZIP code | 53590 |
|---|---|
| Primary city | Sun Prairie |
| State | Wisconsin (WI) |
| County | Dane FIPS 55025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 45,602 |
| Coordinates | 43.199360, -89.208040 |
How ZIP+4 works in 53590
The four digits after the hyphen encode a delivery segment inside 53590. 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 53590 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 53590.
| ZIP | City | Distance |
|---|---|---|
| 53598 | Windsor, WI | 6.6 mi |
| 53559 | Marshall, WI | 6.8 mi |
| 53532 | Deforest, WI | 6.8 mi |
| 53718 | Madison, WI | 7.7 mi |
| 53704 | Madison, WI | 8.2 mi |
| 53714 | Madison, WI | 8.7 mi |
| 53571 | Morrisonville, WI | 9.1 mi |
| 53527 | Cottage Grove, WI | 9.4 mi |
| 53716 | Madison, WI | 10.7 mi |
| 53531 | Deerfield, WI | 11.2 mi |
| 53911 | Arlington, WI | 11.8 mi |
| 53594 | Waterloo, WI | 11.9 mi |
Questions about 53590
What is the ZIP+4 code for 53590?
53590 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 53590, you need to look up a specific street address to get them.
What city is 53590?
53590 is assigned to Sun Prairie, Wisconsin, in Dane 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.