ZIP Code 53531 — Deerfield, WI
53531 is a standard (street delivery) ZIP code serving Deerfield, 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 53531 at a glance
| ZIP code | 53531 |
|---|---|
| Primary city | Deerfield |
| State | Wisconsin (WI) |
| County | Dane FIPS 55025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,430 |
| Coordinates | 43.056960, -89.101140 |
How ZIP+4 works in 53531
The four digits after the hyphen encode a delivery segment inside 53531. 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 53531 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 53531.
| ZIP | City | Distance |
|---|---|---|
| 53527 | Cottage Grove, WI | 4.6 mi |
| 53523 | Cambridge, WI | 6.2 mi |
| 53559 | Marshall, WI | 7.6 mi |
| 53718 | Madison, WI | 9.1 mi |
| 53551 | Lake Mills, WI | 9.5 mi |
| 53558 | Mcfarland, WI | 10 mi |
| 53589 | Stoughton, WI | 10.6 mi |
| 53716 | Madison, WI | 10.8 mi |
| 53594 | Waterloo, WI | 10.9 mi |
| 53714 | Madison, WI | 11.1 mi |
| 53590 | Sun Prairie, WI | 11.2 mi |
| 53704 | Madison, WI | 13.5 mi |
Questions about 53531
What is the ZIP+4 code for 53531?
53531 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 53531, you need to look up a specific street address to get them.
What city is 53531?
53531 is assigned to Deerfield, 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.