ZIP Code 35643 — Hillsboro, AL
35643 is a standard (street delivery) ZIP code serving Hillsboro, Alabama, in Lawrence 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 35643 at a glance
| ZIP code | 35643 |
|---|---|
| Primary city | Hillsboro |
| State | Alabama (AL) |
| County | Lawrence FIPS 01079 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,101 |
| Coordinates | 34.668820, -87.207070 |
How ZIP+4 works in 35643
The four digits after the hyphen encode a delivery segment inside 35643. 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 35643 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 35643.
| ZIP | City | Distance |
|---|---|---|
| 35618 | Courtland, AL | 5.9 mi |
| 35673 | Trinity, AL | 7.1 mi |
| 35611 | Athens, AL | 9.7 mi |
| 35672 | Town Creek, AL | 11.4 mi |
| 35601 | Decatur, AL | 12.1 mi |
| 35652 | Rogersville, AL | 13.7 mi |
| 35671 | Tanner, AL | 14.5 mi |
| 35614 | Athens, AL | 15.2 mi |
| 35650 | Moulton, AL | 15.9 mi |
| 35603 | Decatur, AL | 16.4 mi |
| 35646 | Leighton, AL | 18.4 mi |
| 35615 | Belle Mina, AL | 18.8 mi |
Questions about 35643
What is the ZIP+4 code for 35643?
35643 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 35643, you need to look up a specific street address to get them.
What city is 35643?
35643 is assigned to Hillsboro, Alabama, in Lawrence 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.