ZIP Code 43019 — Fredericktown, OH
43019 is a standard (street delivery) ZIP code serving Fredericktown, Ohio, 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 43019 at a glance
| ZIP code | 43019 |
|---|---|
| Primary city | Fredericktown |
| State | Ohio (OH) |
| County | Knox FIPS 39083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 9,445 |
| Coordinates | 40.495270, -82.578310 |
How ZIP+4 works in 43019
The four digits after the hyphen encode a delivery segment inside 43019. 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 43019 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 43019.
| ZIP | City | Distance |
|---|---|---|
| 43317 | Chesterville, OH | 5.6 mi |
| 44813 | Bellville, OH | 7.8 mi |
| 43350 | Sparta, OH | 9.4 mi |
| 43050 | Mount Vernon, OH | 9.6 mi |
| 44822 | Butler, OH | 10.3 mi |
| 43338 | Mount Gilead, OH | 10.6 mi |
| 44904 | Mansfield, OH | 11.9 mi |
| 43321 | Fulton, OH | 13.3 mi |
| 43334 | Marengo, OH | 13.3 mi |
| 43011 | Centerburg, OH | 14 mi |
| 43315 | Cardington, OH | 15.8 mi |
| 43028 | Howard, OH | 16 mi |
Questions about 43019
What is the ZIP+4 code for 43019?
43019 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 43019, you need to look up a specific street address to get them.
What city is 43019?
43019 is assigned to Fredericktown, Ohio, 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.