ZIP Code 40342 — Lawrenceburg, KY
40342 is a standard (street delivery) ZIP code serving Lawrenceburg, Kentucky, in Anderson 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 40342 at a glance
| ZIP code | 40342 |
|---|---|
| Primary city | Lawrenceburg |
| State | Kentucky (KY) |
| County | Anderson FIPS 21005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 23,963 |
| Coordinates | 38.003600, -84.983700 |
How ZIP+4 works in 40342
The four digits after the hyphen encode a delivery segment inside 40342. 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 40342 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 40342.
| ZIP | City | Distance |
|---|---|---|
| 40372 | Salvisa, KY | 8.4 mi |
| 40076 | Waddy, KY | 9.4 mi |
| 40046 | Mount Eden, KY | 10.6 mi |
| 40012 | Chaplin, KY | 12.3 mi |
| 40383 | Versailles, KY | 13.3 mi |
| 40078 | Willisburg, KY | 14.3 mi |
| 40330 | Harrodsburg, KY | 15.6 mi |
| 40040 | Mackville, KY | 16.3 mi |
| 40601 | Frankfort, KY | 16.7 mi |
| 40008 | Bloomfield, KY | 17.2 mi |
| 40347 | Midway, KY | 17.9 mi |
| 40003 | Bagdad, KY | 18.6 mi |
Questions about 40342
What is the ZIP+4 code for 40342?
40342 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 40342, you need to look up a specific street address to get them.
What city is 40342?
40342 is assigned to Lawrenceburg, Kentucky, in Anderson 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.