ZIP Code 53209 — Milwaukee, WI
53209 is a standard (street delivery) ZIP code serving Milwaukee, Wisconsin, in Milwaukee 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 53209 at a glance
| ZIP code | 53209 |
|---|---|
| Primary city | Milwaukee |
| State | Wisconsin (WI) |
| County | Milwaukee FIPS 55079 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 45,170 |
| Coordinates | 43.128710, -87.947170 |
How ZIP+4 works in 53209
The four digits after the hyphen encode a delivery segment inside 53209. 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 53209 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.
Other ZIP codes in Milwaukee
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 53209.
| ZIP | City | Distance |
|---|---|---|
| 53218 | Milwaukee, WI | 2.5 mi |
| 53217 | Milwaukee, WI | 2.5 mi |
| 53223 | Milwaukee, WI | 3.2 mi |
| 53216 | Milwaukee, WI | 3.3 mi |
| 53206 | Milwaukee, WI | 3.8 mi |
| 53212 | Milwaukee, WI | 4.2 mi |
| 53210 | Milwaukee, WI | 4.3 mi |
| 53211 | Milwaukee, WI | 4.4 mi |
| 53225 | Milwaukee, WI | 4.9 mi |
| 53205 | Milwaukee, WI | 5.2 mi |
| 53224 | Milwaukee, WI | 5.2 mi |
| 53222 | Milwaukee, WI | 5.5 mi |
Questions about 53209
What is the ZIP+4 code for 53209?
53209 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 53209, you need to look up a specific street address to get them.
What city is 53209?
53209 is assigned to Milwaukee, Wisconsin, in Milwaukee 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.