ZIP Code 53143 — Kenosha, WI
53143 is a standard (street delivery) ZIP code serving Kenosha, Wisconsin, in Kenosha 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 53143 at a glance
| ZIP code | 53143 |
|---|---|
| Primary city | Kenosha |
| State | Wisconsin (WI) |
| County | Kenosha FIPS 55059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 20,889 |
| Coordinates | 42.561090, -87.830380 |
How ZIP+4 works in 53143
The four digits after the hyphen encode a delivery segment inside 53143. 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 53143 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 Kenosha
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 53143.
| ZIP | City | Distance |
|---|---|---|
| 53158 | Pleasant Prairie, WI | 3.9 mi |
| 53140 | Kenosha, WI | 4 mi |
| 60096 | Winthrop Harbor, IL | 5.5 mi |
| 53142 | Kenosha, WI | 5.6 mi |
| 53144 | Kenosha, WI | 6.2 mi |
| 60075 | Russell, IL | 6.3 mi |
| 60099 | Zion, IL | 7.2 mi |
| 53403 | Racine, WI | 8.7 mi |
| 53104 | Bristol, WI | 10.4 mi |
| 60083 | Wadsworth, IL | 10.4 mi |
| 60087 | Waukegan, IL | 10.9 mi |
| 53177 | Sturtevant, WI | 11 mi |
Questions about 53143
What is the ZIP+4 code for 53143?
53143 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 53143, you need to look up a specific street address to get them.
What city is 53143?
53143 is assigned to Kenosha, Wisconsin, in Kenosha 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.