ZIP Code 40046 — Mount Eden, KY
40046 is a standard (street delivery) ZIP code serving Mount Eden, Kentucky, in Spencer 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 40046 at a glance
| ZIP code | 40046 |
|---|---|
| Primary city | Mount Eden |
| State | Kentucky (KY) |
| County | Spencer FIPS 21215 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,122 |
| Coordinates | 38.023240, -85.177290 |
How ZIP+4 works in 40046
The four digits after the hyphen encode a delivery segment inside 40046. 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 40046 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 40046.
| ZIP | City | Distance |
|---|---|---|
| 40076 | Waddy, KY | 7.9 mi |
| 40012 | Chaplin, KY | 8 mi |
| 40008 | Bloomfield, KY | 9.2 mi |
| 40342 | Lawrenceburg, KY | 10.6 mi |
| 40071 | Taylorsville, KY | 10.6 mi |
| 40022 | Finchville, KY | 12.3 mi |
| 40078 | Willisburg, KY | 12.6 mi |
| 40020 | Fairfield, KY | 12.9 mi |
| 40065 | Shelbyville, KY | 13.1 mi |
| 40023 | Fisherville, KY | 16.5 mi |
| 40067 | Simpsonville, KY | 17.3 mi |
| 40372 | Salvisa, KY | 17.7 mi |
Questions about 40046
What is the ZIP+4 code for 40046?
40046 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 40046, you need to look up a specific street address to get them.
What city is 40046?
40046 is assigned to Mount Eden, Kentucky, in Spencer 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.