ZIP Code 53120 — East Troy, WI
53120 is a standard (street delivery) ZIP code serving East Troy, Wisconsin, in Walworth 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 53120 at a glance
| ZIP code | 53120 |
|---|---|
| Primary city | East Troy |
| State | Wisconsin (WI) |
| County | Walworth FIPS 55127 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 10,848 |
| Coordinates | 42.800660, -88.417830 |
How ZIP+4 works in 53120
The four digits after the hyphen encode a delivery segment inside 53120. 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 53120 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 53120.
| ZIP | City | Distance |
|---|---|---|
| 53149 | Mukwonago, WI | 6.4 mi |
| 53119 | Eagle, WI | 6.7 mi |
| 53121 | Elkhorn, WI | 8.5 mi |
| 53153 | North Prairie, WI | 9.7 mi |
| 53167 | Rochester, WI | 10.7 mi |
| 53156 | Palmyra, WI | 10.7 mi |
| 53176 | Springfield, WI | 10.9 mi |
| 53127 | Genesee Depot, WI | 11.2 mi |
| 53185 | Waterford, WI | 11.4 mi |
| 53103 | Big Bend, WI | 11.7 mi |
| 53105 | Burlington, WI | 11.7 mi |
| 53118 | Dousman, WI | 12.4 mi |
Questions about 53120
What is the ZIP+4 code for 53120?
53120 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 53120, you need to look up a specific street address to get them.
What city is 53120?
53120 is assigned to East Troy, Wisconsin, in Walworth 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.