ZIP Code 47978 — Rensselaer, IN
47978 is a standard (street delivery) ZIP code serving Rensselaer, Indiana, in Jasper 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 47978 at a glance
| ZIP code | 47978 |
|---|---|
| Primary city | Rensselaer |
| State | Indiana (IN) |
| County | Jasper FIPS 18073 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 10,261 |
| Coordinates | 40.979910, -87.116300 |
How ZIP+4 works in 47978
The four digits after the hyphen encode a delivery segment inside 47978. 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 47978 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 47978.
| ZIP | City | Distance |
|---|---|---|
| 47964 | Mount Ayr, IN | 9.7 mi |
| 47943 | Fair Oaks, IN | 10.1 mi |
| 47946 | Francesville, IN | 12.8 mi |
| 47959 | Monon, IN | 13.8 mi |
| 47922 | Brook, IN | 14.3 mi |
| 46392 | Wheatfield, IN | 14.6 mi |
| 47957 | Medaryville, IN | 14.6 mi |
| 47977 | Remington, IN | 15.2 mi |
| 46310 | Demotte, IN | 15.2 mi |
| 47995 | Wolcott, IN | 15.9 mi |
| 47948 | Goodland, IN | 16.6 mi |
| 47963 | Morocco, IN | 17.1 mi |
Questions about 47978
What is the ZIP+4 code for 47978?
47978 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 47978, you need to look up a specific street address to get them.
What city is 47978?
47978 is assigned to Rensselaer, Indiana, in Jasper 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.