ZIP Code 53027 — Hartford, WI
53027 is a standard (street delivery) ZIP code serving Hartford, Wisconsin, in Washington 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 53027 at a glance
| ZIP code | 53027 |
|---|---|
| Primary city | Hartford |
| State | Wisconsin (WI) |
| County | Washington FIPS 55131 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 23,118 |
| Coordinates | 43.316970, -88.373560 |
How ZIP+4 works in 53027
The four digits after the hyphen encode a delivery segment inside 53027. 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 53027 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 53027.
| ZIP | City | Distance |
|---|---|---|
| 53078 | Rubicon, WI | 4.3 mi |
| 53086 | Slinger, WI | 5.2 mi |
| 53033 | Hubertus, WI | 8.1 mi |
| 53059 | Neosho, WI | 8.1 mi |
| 53099 | Woodland, WI | 8.8 mi |
| 53076 | Richfield, WI | 8.9 mi |
| 53017 | Colgate, WI | 9.9 mi |
| 53035 | Iron Ridge, WI | 10 mi |
| 53003 | Ashippun, WI | 10.3 mi |
| 53002 | Allenton, WI | 10.5 mi |
| 53037 | Jackson, WI | 10.7 mi |
| 53095 | West Bend, WI | 11.8 mi |
Questions about 53027
What is the ZIP+4 code for 53027?
53027 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 53027, you need to look up a specific street address to get them.
What city is 53027?
53027 is assigned to Hartford, Wisconsin, in Washington 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.