ZIP Code 46057 — Michigantown, IN
46057 is a standard (street delivery) ZIP code serving Michigantown, Indiana, in Clinton 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 46057 at a glance
| ZIP code | 46057 |
|---|---|
| Primary city | Michigantown |
| State | Indiana (IN) |
| County | Clinton FIPS 18023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 1,270 |
| Coordinates | 40.337960, -86.378010 |
How ZIP+4 works in 46057
The four digits after the hyphen encode a delivery segment inside 46057. 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 46057 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 46057.
| ZIP | City | Distance |
|---|---|---|
| 46039 | Forest, IN | 4.1 mi |
| 46041 | Frankfort, IN | 6.6 mi |
| 46979 | Russiaville, IN | 8.1 mi |
| 46049 | Kempton, IN | 8.7 mi |
| 46050 | Kirklin, IN | 9.3 mi |
| 46915 | Burlington, IN | 9.7 mi |
| 46920 | Cutler, IN | 10.7 mi |
| 46045 | Goldsmith, IN | 12.5 mi |
| 46913 | Bringhurst, IN | 13 mi |
| 46065 | Rossville, IN | 13.5 mi |
| 46058 | Mulberry, IN | 14.3 mi |
| 46068 | Sharpsville, IN | 14.3 mi |
Questions about 46057
What is the ZIP+4 code for 46057?
46057 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 46057, you need to look up a specific street address to get them.
What city is 46057?
46057 is assigned to Michigantown, Indiana, in Clinton 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.