ZIP Code 46360 — Michigan City, IN
46360 is a standard (street delivery) ZIP code serving Michigan City, Indiana, in LaPorte 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 46360 at a glance
| ZIP code | 46360 |
|---|---|
| Primary city | Michigan City |
| State | Indiana (IN) |
| County | LaPorte FIPS 18091 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 43,817 |
| Coordinates | 41.687390, -86.864640 |
How ZIP+4 works in 46360
The four digits after the hyphen encode a delivery segment inside 46360. 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 46360 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 46360.
| ZIP | City | Distance |
|---|---|---|
| 46301 | Beverly Shores, IN | 5.7 mi |
| 46350 | La Porte, IN | 9.2 mi |
| 49117 | New Buffalo, MI | 9.6 mi |
| 46391 | Westville, IN | 10.1 mi |
| 46304 | Chesterton, IN | 10.8 mi |
| 49129 | Union Pier, MI | 12.7 mi |
| 46371 | Rolling Prairie, IN | 13.6 mi |
| 46345 | Kingsbury, IN | 13.8 mi |
| 49116 | Lakeside, MI | 15.1 mi |
| 46382 | Union Mills, IN | 16 mi |
| 49128 | Three Oaks, MI | 16.1 mi |
| 46346 | Kingsford Heights, IN | 16.9 mi |
Questions about 46360
What is the ZIP+4 code for 46360?
46360 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 46360, you need to look up a specific street address to get them.
What city is 46360?
46360 is assigned to Michigan City, Indiana, in LaPorte 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.