ZIP Code 46788 — Spencerville, IN
46788 is a standard (street delivery) ZIP code serving Spencerville, Indiana, in DeKalb 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 46788 at a glance
| ZIP code | 46788 |
|---|---|
| Primary city | Spencerville |
| State | Indiana (IN) |
| County | DeKalb FIPS 18033 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Indianapolis |
| Population | 4,373 |
| Coordinates | 41.270050, -84.908760 |
How ZIP+4 works in 46788
The four digits after the hyphen encode a delivery segment inside 46788. 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 46788 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 46788.
| ZIP | City | Distance |
|---|---|---|
| 46785 | Saint Joe, IN | 3.6 mi |
| 46741 | Grabill, IN | 4.6 mi |
| 46743 | Harlan, IN | 4.8 mi |
| 46765 | Leo, IN | 7.3 mi |
| 46706 | Auburn, IN | 8.4 mi |
| 43526 | Hicksville, OH | 9.7 mi |
| 46797 | Woodburn, IN | 10.2 mi |
| 46721 | Butler, IN | 10.8 mi |
| 45813 | Antwerp, OH | 10.8 mi |
| 46835 | Fort Wayne, IN | 10.9 mi |
| 46845 | Fort Wayne, IN | 11.3 mi |
| 46738 | Garrett, IN | 12.4 mi |
Questions about 46788
What is the ZIP+4 code for 46788?
46788 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 46788, you need to look up a specific street address to get them.
What city is 46788?
46788 is assigned to Spencerville, Indiana, in DeKalb 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.