ZIP Code 43356 — Waldo, OH
43356 is a standard (street delivery) ZIP code serving Waldo, Ohio, in Marion 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 43356 at a glance
| ZIP code | 43356 |
|---|---|
| Primary city | Waldo |
| State | Ohio (OH) |
| County | Marion FIPS 39101 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,120 |
| Coordinates | 40.457480, -83.047880 |
How ZIP+4 works in 43356
The four digits after the hyphen encode a delivery segment inside 43356. 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 43356 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 43356.
| ZIP | City | Distance |
|---|---|---|
| 43003 | Ashley, OH | 5.3 mi |
| 43342 | Prospect, OH | 7 mi |
| 43066 | Radnor, OH | 7.3 mi |
| 43315 | Cardington, OH | 9.1 mi |
| 43322 | Green Camp, OH | 9.9 mi |
| 43302 | Marion, OH | 10.7 mi |
| 43015 | Delaware, OH | 11 mi |
| 43321 | Fulton, OH | 11.5 mi |
| 43320 | Edison, OH | 11.9 mi |
| 43036 | Magnetic Springs, OH | 13.4 mi |
| 43334 | Marengo, OH | 13.7 mi |
| 43314 | Caledonia, OH | 13.9 mi |
Questions about 43356
What is the ZIP+4 code for 43356?
43356 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 43356, you need to look up a specific street address to get them.
What city is 43356?
43356 is assigned to Waldo, Ohio, in Marion 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.