ZIP Code 46545 — Mishawaka, IN
46545 is a standard (street delivery) ZIP code serving Mishawaka, Indiana, in St. Joseph 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 46545 at a glance
| ZIP code | 46545 |
|---|---|
| Primary city | Mishawaka |
| State | Indiana (IN) |
| County | St. Joseph FIPS 18141 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 26,606 |
| Coordinates | 41.693760, -86.146020 |
How ZIP+4 works in 46545
The four digits after the hyphen encode a delivery segment inside 46545. 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 46545 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 Mishawaka
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 46545.
| ZIP | City | Distance |
|---|---|---|
| 46530 | Granger, IN | 3.4 mi |
| 46635 | South Bend, IN | 3.5 mi |
| 46615 | South Bend, IN | 3.6 mi |
| 46561 | Osceola, IN | 4.1 mi |
| 46617 | South Bend, IN | 4.6 mi |
| 46556 | Notre Dame, IN | 5.1 mi |
| 46544 | Mishawaka, IN | 5.3 mi |
| 46624 | South Bend, IN | 5.5 mi |
| 46637 | South Bend, IN | 5.7 mi |
| 46601 | South Bend, IN | 5.7 mi |
| 46616 | South Bend, IN | 6.2 mi |
| 46613 | South Bend, IN | 6.7 mi |
Questions about 46545
What is the ZIP+4 code for 46545?
46545 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 46545, you need to look up a specific street address to get them.
What city is 46545?
46545 is assigned to Mishawaka, Indiana, in St. Joseph 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.