ZIP Code 40601 — Frankfort, KY
40601 is a standard (street delivery) ZIP code serving Frankfort, Kentucky, in Franklin 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 40601 at a glance
| ZIP code | 40601 |
|---|---|
| Primary city | Frankfort |
| State | Kentucky (KY) |
| County | Franklin FIPS 21073 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 51,893 |
| Coordinates | 38.232940, -84.883270 |
How ZIP+4 works in 40601
The four digits after the hyphen encode a delivery segment inside 40601. 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 40601 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 40601.
| ZIP | City | Distance |
|---|---|---|
| 40003 | Bagdad, KY | 9 mi |
| 40347 | Midway, KY | 10.3 mi |
| 40379 | Stamping Ground, KY | 11.7 mi |
| 40076 | Waddy, KY | 13.8 mi |
| 40057 | Pleasureville, KY | 13.9 mi |
| 40036 | Lockport, KY | 15.3 mi |
| 40007 | Bethlehem, KY | 16.4 mi |
| 40342 | Lawrenceburg, KY | 16.7 mi |
| 40383 | Versailles, KY | 17.2 mi |
| 40359 | Owenton, KY | 17.5 mi |
| 40065 | Shelbyville, KY | 17.6 mi |
| 40324 | Georgetown, KY | 18.1 mi |
Questions about 40601
What is the ZIP+4 code for 40601?
40601 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 40601, you need to look up a specific street address to get them.
What city is 40601?
40601 is assigned to Frankfort, Kentucky, in Franklin 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.