ZIP Code 40142 — Guston, KY
40142 is a standard (street delivery) ZIP code serving Guston, Kentucky, in Meade 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 40142 at a glance
| ZIP code | 40142 |
|---|---|
| Primary city | Guston |
| State | Kentucky (KY) |
| County | Meade FIPS 21163 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,253 |
| Coordinates | 37.888980, -86.210950 |
How ZIP+4 works in 40142
The four digits after the hyphen encode a delivery segment inside 40142. 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 40142 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 40142.
| ZIP | City | Distance |
|---|---|---|
| 40117 | Ekron, KY | 4.7 mi |
| 40108 | Brandenburg, KY | 6 mi |
| 40146 | Irvington, KY | 6.6 mi |
| 40176 | Webster, KY | 7.8 mi |
| 40175 | Vine Grove, KY | 8.3 mi |
| 40115 | Custer, KY | 10.5 mi |
| 47142 | Mauckport, IN | 12.4 mi |
| 40155 | Muldraugh, KY | 12.5 mi |
| 40140 | Garfield, KY | 12.5 mi |
| 40144 | Harned, KY | 12.7 mi |
| 40157 | Payneville, KY | 12.8 mi |
| 47135 | Laconia, IN | 12.9 mi |
Questions about 40142
What is the ZIP+4 code for 40142?
40142 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 40142, you need to look up a specific street address to get them.
What city is 40142?
40142 is assigned to Guston, Kentucky, in Meade 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.