ZIP Code 40143 — Hardinsburg, KY
40143 is a standard (street delivery) ZIP code serving Hardinsburg, Kentucky, in Breckinridge 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 40143 at a glance
| ZIP code | 40143 |
|---|---|
| Primary city | Hardinsburg |
| State | Kentucky (KY) |
| County | Breckinridge FIPS 21027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,756 |
| Coordinates | 37.785410, -86.505070 |
How ZIP+4 works in 40143
The four digits after the hyphen encode a delivery segment inside 40143. 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 40143 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 40143.
| ZIP | City | Distance |
|---|---|---|
| 40111 | Cloverport, KY | 6.8 mi |
| 40144 | Harned, KY | 7.2 mi |
| 40178 | Westview, KY | 10.2 mi |
| 40146 | Irvington, KY | 11 mi |
| 47574 | Rome, IN | 12 mi |
| 40152 | Mcdaniels, KY | 12.3 mi |
| 40170 | Stephensport, KY | 12.4 mi |
| 40119 | Falls Of Rough, KY | 12.5 mi |
| 40140 | Garfield, KY | 12.6 mi |
| 40171 | Union Star, KY | 12.9 mi |
| 40176 | Webster, KY | 12.9 mi |
| 40145 | Hudson, KY | 13.9 mi |
Questions about 40143
What is the ZIP+4 code for 40143?
40143 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 40143, you need to look up a specific street address to get them.
What city is 40143?
40143 is assigned to Hardinsburg, Kentucky, in Breckinridge 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.