ZIP Code 46365 — Mill Creek, IN
46365 is a standard (street delivery) ZIP code serving Mill Creek, 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 46365 at a glance
| ZIP code | 46365 |
|---|---|
| Primary city | Mill Creek |
| State | Indiana (IN) |
| County | LaPorte FIPS 18091 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 992 |
| Coordinates | 41.606050, -86.541120 |
How ZIP+4 works in 46365
The four digits after the hyphen encode a delivery segment inside 46365. 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 46365 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 46365.
| ZIP | City | Distance |
|---|---|---|
| 46371 | Rolling Prairie, IN | 5.8 mi |
| 46554 | North Liberty, IN | 7 mi |
| 46552 | New Carlisle, IN | 7.6 mi |
| 46350 | La Porte, IN | 9.3 mi |
| 46574 | Walkerton, IN | 9.6 mi |
| 46345 | Kingsbury, IN | 9.7 mi |
| 46619 | South Bend, IN | 10.4 mi |
| 46346 | Kingsford Heights, IN | 11.8 mi |
| 46628 | South Bend, IN | 13.3 mi |
| 46614 | South Bend, IN | 13.4 mi |
| 46532 | Hamlet, IN | 13.6 mi |
| 49113 | Galien, MI | 13.7 mi |
Questions about 46365
What is the ZIP+4 code for 46365?
46365 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 46365, you need to look up a specific street address to get them.
What city is 46365?
46365 is assigned to Mill Creek, 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.