ZIP Code 47620 — Mount Vernon, IN
47620 is a standard (street delivery) ZIP code serving Mount Vernon, Indiana, in Posey 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 47620 at a glance
| ZIP code | 47620 |
|---|---|
| Primary city | Mount Vernon |
| State | Indiana (IN) |
| County | Posey FIPS 18129 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 12,361 |
| Coordinates | 37.932840, -87.905550 |
How ZIP+4 works in 47620
The four digits after the hyphen encode a delivery segment inside 47620. 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 47620 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 47620.
| ZIP | City | Distance |
|---|---|---|
| 42461 | Uniontown, KY | 10.1 mi |
| 62861 | Maunie, IL | 10.4 mi |
| 62867 | New Haven, IL | 10.8 mi |
| 47631 | New Harmony, IN | 11.6 mi |
| 47638 | Wadesville, IN | 11.8 mi |
| 47712 | Evansville, IN | 13.4 mi |
| 42406 | Corydon, KY | 13.8 mi |
| 42462 | Waverly, KY | 14.5 mi |
| 62821 | Carmi, IL | 15.7 mi |
| 47720 | Evansville, IN | 16.8 mi |
| 47633 | Poseyville, IN | 17.5 mi |
| 62827 | Crossville, IL | 17.7 mi |
Questions about 47620
What is the ZIP+4 code for 47620?
47620 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 47620, you need to look up a specific street address to get them.
What city is 47620?
47620 is assigned to Mount Vernon, Indiana, in Posey 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.