ZIP Code 53024 — Grafton, WI
53024 is a standard (street delivery) ZIP code serving Grafton, Wisconsin, in Ozaukee 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 53024 at a glance
| ZIP code | 53024 |
|---|---|
| Primary city | Grafton |
| State | Wisconsin (WI) |
| County | Ozaukee FIPS 55089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 18,982 |
| Coordinates | 43.332330, -87.932990 |
How ZIP+4 works in 53024
The four digits after the hyphen encode a delivery segment inside 53024. 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 53024 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 53024.
| ZIP | City | Distance |
|---|---|---|
| 53012 | Cedarburg, WI | 5.4 mi |
| 53080 | Saukville, WI | 5.9 mi |
| 53074 | Port Washington, WI | 7 mi |
| 53097 | Mequon, WI | 7 mi |
| 53092 | Mequon, WI | 7.7 mi |
| 53022 | Germantown, WI | 11.4 mi |
| 53037 | Jackson, WI | 11.5 mi |
| 53021 | Fredonia, WI | 11.7 mi |
| 53004 | Belgium, WI | 11.8 mi |
| 53223 | Milwaukee, WI | 12 mi |
| 53095 | West Bend, WI | 12 mi |
| 53217 | Milwaukee, WI | 12.1 mi |
Questions about 53024
What is the ZIP+4 code for 53024?
53024 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 53024, you need to look up a specific street address to get them.
What city is 53024?
53024 is assigned to Grafton, Wisconsin, in Ozaukee 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.