ZIP Code 43521 — Fayette, OH
43521 is a standard (street delivery) ZIP code serving Fayette, Ohio, in Fulton 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 43521 at a glance
| ZIP code | 43521 |
|---|---|
| Primary city | Fayette |
| State | Ohio (OH) |
| County | Fulton FIPS 39051 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,471 |
| Coordinates | 41.663770, -84.297170 |
How ZIP+4 works in 43521
The four digits after the hyphen encode a delivery segment inside 43521. 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 43521 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 43521.
| ZIP | City | Distance |
|---|---|---|
| 49256 | Morenci, MI | 7.1 mi |
| 43501 | Alvordton, OH | 8.5 mi |
| 49288 | Waldron, MI | 8.5 mi |
| 43502 | Archbold, OH | 9.1 mi |
| 43570 | West Unity, OH | 9.2 mi |
| 43567 | Wauseon, OH | 9.6 mi |
| 43553 | Pettisville, OH | 9.9 mi |
| 43531 | Kunkle, OH | 10.4 mi |
| 43533 | Lyons, OH | 11.4 mi |
| 49289 | Weston, MI | 12.3 mi |
| 49279 | Sand Creek, MI | 12.8 mi |
| 49247 | Hudson, MI | 12.9 mi |
Questions about 43521
What is the ZIP+4 code for 43521?
43521 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 43521, you need to look up a specific street address to get them.
What city is 43521?
43521 is assigned to Fayette, Ohio, in Fulton 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.