ZIP Code 53809 — Fennimore, WI
53809 is a standard (street delivery) ZIP code serving Fennimore, Wisconsin, in Grant 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 53809 at a glance
| ZIP code | 53809 |
|---|---|
| Primary city | Fennimore |
| State | Wisconsin (WI) |
| County | Grant FIPS 55043 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,748 |
| Coordinates | 42.993620, -90.633230 |
How ZIP+4 works in 53809
The four digits after the hyphen encode a delivery segment inside 53809. 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 53809 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 53809.
| ZIP | City | Distance |
|---|---|---|
| 53825 | Stitzer, WI | 5.7 mi |
| 53569 | Montfort, WI | 10.3 mi |
| 53805 | Boscobel, WI | 10.6 mi |
| 53827 | Woodman, WI | 11 mi |
| 53813 | Lancaster, WI | 11.1 mi |
| 53554 | Livingston, WI | 11.2 mi |
| 53816 | Mount Hope, WI | 11.4 mi |
| 53543 | Highland, WI | 14.3 mi |
| 53526 | Cobb, WI | 14.6 mi |
| 53573 | Muscoda, WI | 15.6 mi |
| 53580 | Rewey, WI | 15.7 mi |
| 53804 | Bloomington, WI | 16.1 mi |
Questions about 53809
What is the ZIP+4 code for 53809?
53809 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 53809, you need to look up a specific street address to get them.
What city is 53809?
53809 is assigned to Fennimore, Wisconsin, in Grant 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.