ZIP Code 47145 — Milltown, IN
47145 is a standard (street delivery) ZIP code serving Milltown, Indiana, in Crawford 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 47145 at a glance
| ZIP code | 47145 |
|---|---|
| Primary city | Milltown |
| State | Indiana (IN) |
| County | Crawford FIPS 18025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Indiana/Marengo |
| Population | 1,782 |
| Coordinates | 38.334540, -86.301150 |
How ZIP+4 works in 47145
The four digits after the hyphen encode a delivery segment inside 47145. 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 47145 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 47145.
| ZIP | City | Distance |
|---|---|---|
| 47115 | Depauw, IN | 4.6 mi |
| 47140 | Marengo, IN | 4.9 mi |
| 47166 | Ramsey, IN | 7.4 mi |
| 47125 | Hardinsburg, IN | 8.9 mi |
| 47123 | Grantsburg, IN | 9.8 mi |
| 47118 | English, IN | 10.2 mi |
| 47120 | Fredericksburg, IN | 10.3 mi |
| 47161 | New Salisbury, IN | 10.7 mi |
| 47137 | Leavenworth, IN | 10.8 mi |
| 47174 | Sulphur, IN | 12.3 mi |
| 47164 | Palmyra, IN | 12.4 mi |
| 47114 | Crandall, IN | 12.7 mi |
Questions about 47145
What is the ZIP+4 code for 47145?
47145 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 47145, you need to look up a specific street address to get them.
What city is 47145?
47145 is assigned to Milltown, Indiana, in Crawford 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.