ZIP Code 40935 — Flat Lick, KY
40935 is a standard (street delivery) ZIP code serving Flat Lick, Kentucky, in Knox 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 40935 at a glance
| ZIP code | 40935 |
|---|---|
| Primary city | Flat Lick |
| State | Kentucky (KY) |
| County | Knox FIPS 21121 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,748 |
| Coordinates | 36.911070, -83.712640 |
How ZIP+4 works in 40935
The four digits after the hyphen encode a delivery segment inside 40935. 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 40935 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 40935.
| ZIP | City | Distance |
|---|---|---|
| 40982 | Scalf, KY | 1.8 mi |
| 40997 | Walker, KY | 2.7 mi |
| 40953 | Hinkle, KY | 5.2 mi |
| 40915 | Bimble, KY | 6.1 mi |
| 40902 | Arjay, KY | 6.5 mi |
| 40939 | Fourmile, KY | 6.8 mi |
| 40946 | Green Road, KY | 7 mi |
| 40923 | Cannon, KY | 7.6 mi |
| 40949 | Heidrick, KY | 8.5 mi |
| 40943 | Girdler, KY | 8.5 mi |
| 40906 | Barbourville, KY | 9.1 mi |
| 40903 | Artemus, KY | 9.6 mi |
Questions about 40935
What is the ZIP+4 code for 40935?
40935 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 40935, you need to look up a specific street address to get them.
What city is 40935?
40935 is assigned to Flat Lick, Kentucky, in Knox 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.