ZIP Code 43344 — Richwood, OH
43344 is a standard (street delivery) ZIP code serving Richwood, Ohio, in Union 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 43344 at a glance
| ZIP code | 43344 |
|---|---|
| Primary city | Richwood |
| State | Ohio (OH) |
| County | Union FIPS 39159 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,173 |
| Coordinates | 40.432190, -83.338320 |
How ZIP+4 works in 43344
The four digits after the hyphen encode a delivery segment inside 43344. 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 43344 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 43344.
| ZIP | City | Distance |
|---|---|---|
| 43036 | Magnetic Springs, OH | 6.8 mi |
| 43007 | Broadway, OH | 7.8 mi |
| 43342 | Prospect, OH | 8.8 mi |
| 43066 | Radnor, OH | 9.5 mi |
| 43322 | Green Camp, OH | 9.7 mi |
| 43067 | Raymond, OH | 9.8 mi |
| 43358 | West Mansfield, OH | 10.2 mi |
| 43340 | Mount Victory, OH | 10.4 mi |
| 43332 | La Rue, OH | 10.7 mi |
| 43341 | New Bloomington, OH | 11.4 mi |
| 43040 | Marysville, OH | 11.8 mi |
| 43061 | Ostrander, OH | 12.3 mi |
Questions about 43344
What is the ZIP+4 code for 43344?
43344 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 43344, you need to look up a specific street address to get them.
What city is 43344?
43344 is assigned to Richwood, Ohio, in Union 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.