ZIP Code 46580 — Warsaw, IN
46580 is a standard (street delivery) ZIP code serving Warsaw, Indiana, in Kosciusko 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 46580 at a glance
| ZIP code | 46580 |
|---|---|
| Primary city | Warsaw |
| State | Indiana (IN) |
| County | Kosciusko FIPS 18085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 21,794 |
| Coordinates | 41.208840, -85.872120 |
How ZIP+4 works in 46580
The four digits after the hyphen encode a delivery segment inside 46580. 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 46580 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 Warsaw
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 46580.
| ZIP | City | Distance |
|---|---|---|
| 46590 | Winona Lake, IN | 3.3 mi |
| 46582 | Warsaw, IN | 5.2 mi |
| 46510 | Claypool, IN | 6.1 mi |
| 46508 | Burket, IN | 6.3 mi |
| 46502 | Atwood, IN | 6.5 mi |
| 46539 | Mentone, IN | 8.5 mi |
| 46538 | Leesburg, IN | 8.6 mi |
| 46562 | Pierceton, IN | 9.1 mi |
| 46524 | Etna Green, IN | 9.9 mi |
| 46982 | Silver Lake, IN | 10.5 mi |
| 46555 | North Webster, IN | 12.6 mi |
| 46542 | Milford, IN | 12.7 mi |
Questions about 46580
What is the ZIP+4 code for 46580?
46580 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 46580, you need to look up a specific street address to get them.
What city is 46580?
46580 is assigned to Warsaw, Indiana, in Kosciusko 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.