ZIP Code 46978 — Royal Center, IN
46978 is a standard (street delivery) ZIP code serving Royal Center, Indiana, in Cass 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 46978 at a glance
| ZIP code | 46978 |
|---|---|
| Primary city | Royal Center |
| State | Indiana (IN) |
| County | Cass FIPS 18017 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 2,034 |
| Coordinates | 40.858700, -86.511130 |
How ZIP+4 works in 46978
The four digits after the hyphen encode a delivery segment inside 46978. 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 46978 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 46978.
| ZIP | City | Distance |
|---|---|---|
| 47926 | Burnettsville, IN | 7.2 mi |
| 46950 | Lucerne, IN | 7.5 mi |
| 46985 | Star City, IN | 7.6 mi |
| 47950 | Idaville, IN | 8.4 mi |
| 46947 | Logansport, IN | 9.9 mi |
| 46939 | Kewanna, IN | 10.9 mi |
| 47925 | Buffalo, IN | 12.3 mi |
| 47960 | Monticello, IN | 13.5 mi |
| 46931 | Fulton, IN | 14.2 mi |
| 46988 | Twelve Mile, IN | 14.5 mi |
| 46996 | Winamac, IN | 16 mi |
| 46917 | Camden, IN | 16.6 mi |
Questions about 46978
What is the ZIP+4 code for 46978?
46978 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 46978, you need to look up a specific street address to get them.
What city is 46978?
46978 is assigned to Royal Center, Indiana, in Cass 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.