ZIP Code 43720 — Blue Rock, OH
43720 is a standard (street delivery) ZIP code serving Blue Rock, Ohio, in Muskingum 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 43720 at a glance
| ZIP code | 43720 |
|---|---|
| Primary city | Blue Rock |
| State | Ohio (OH) |
| County | Muskingum FIPS 39119 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,308 |
| Coordinates | 39.792720, -81.868860 |
How ZIP+4 works in 43720
The four digits after the hyphen encode a delivery segment inside 43720. 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 43720 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 43720.
| ZIP | City | Distance |
|---|---|---|
| 43771 | Philo, OH | 4.9 mi |
| 43734 | Duncan Falls, OH | 6.4 mi |
| 43727 | Chandlersville, OH | 6.6 mi |
| 43756 | Mcconnelsville, OH | 8.1 mi |
| 43731 | Crooksville, OH | 11.4 mi |
| 43777 | Roseville, OH | 11.6 mi |
| 43732 | Cumberland, OH | 11.7 mi |
| 43758 | Malta, OH | 12.2 mi |
| 43791 | White Cottage, OH | 13 mi |
| 43701 | Zanesville, OH | 13.3 mi |
| 43735 | East Fultonham, OH | 13.9 mi |
| 43738 | Fultonham, OH | 15 mi |
Questions about 43720
What is the ZIP+4 code for 43720?
43720 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 43720, you need to look up a specific street address to get them.
What city is 43720?
43720 is assigned to Blue Rock, Ohio, in Muskingum 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.