ZIP Code 40390 — Wilmore, KY
40390 is a standard (street delivery) ZIP code serving Wilmore, Kentucky, in Jessamine 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 40390 at a glance
| ZIP code | 40390 |
|---|---|
| Primary city | Wilmore |
| State | Kentucky (KY) |
| County | Jessamine FIPS 21113 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 7,429 |
| Coordinates | 37.854070, -84.670750 |
How ZIP+4 works in 40390
The four digits after the hyphen encode a delivery segment inside 40390. 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 40390 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 40390.
| ZIP | City | Distance |
|---|---|---|
| 40356 | Nicholasville, KY | 5.9 mi |
| 40339 | Keene, KY | 6.4 mi |
| 40310 | Burgin, KY | 8.9 mi |
| 40514 | Lexington, KY | 10.6 mi |
| 40383 | Versailles, KY | 11.4 mi |
| 40513 | Lexington, KY | 11.7 mi |
| 40372 | Salvisa, KY | 12.3 mi |
| 40330 | Harrodsburg, KY | 12.8 mi |
| 40503 | Lexington, KY | 12.8 mi |
| 40444 | Lancaster, KY | 12.9 mi |
| 40517 | Lexington, KY | 13.4 mi |
| 40515 | Lexington, KY | 14.7 mi |
Questions about 40390
What is the ZIP+4 code for 40390?
40390 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 40390, you need to look up a specific street address to get them.
What city is 40390?
40390 is assigned to Wilmore, Kentucky, in Jessamine 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.