ZIP Code 53937 — Hillpoint, WI
53937 is a standard (street delivery) ZIP code serving Hillpoint, Wisconsin, in Sauk 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 53937 at a glance
| ZIP code | 53937 |
|---|---|
| Primary city | Hillpoint |
| State | Wisconsin (WI) |
| County | Sauk FIPS 55111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,157 |
| Coordinates | 43.388410, -90.157530 |
How ZIP+4 works in 53937
The four digits after the hyphen encode a delivery segment inside 53937. 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 53937 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 53937.
| ZIP | City | Distance |
|---|---|---|
| 53942 | Lime Ridge, WI | 5.2 mi |
| 53943 | Loganville, WI | 6.4 mi |
| 53577 | Plain, WI | 6.7 mi |
| 53924 | Cazenovia, WI | 8 mi |
| 53584 | Sextonville, WI | 10.2 mi |
| 53556 | Lone Rock, WI | 11.1 mi |
| 53961 | Rock Springs, WI | 12.1 mi |
| 53959 | Reedsburg, WI | 12.9 mi |
| 53581 | Richland Center, WI | 13 mi |
| 53941 | La Valle, WI | 13.2 mi |
| 53540 | Gotham, WI | 13.4 mi |
| 53588 | Spring Green, WI | 14.2 mi |
Questions about 53937
What is the ZIP+4 code for 53937?
53937 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 53937, you need to look up a specific street address to get them.
What city is 53937?
53937 is assigned to Hillpoint, Wisconsin, in Sauk 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.